Home / 89,290.77-123,221.16-49,004.63

Finding the Fourth Proportional to 89,290.77, 123,221.16 and 49,004.63

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Solution

The fourth proportional to 89,290.77, 123,221.16 and 49,004.63 is: 67,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,290.77 : 123,221.16 = 49,004.63 : x
  2. Step 2: Convert to fraction form
    89,290.77/123,221.16 = 49,004.63/x
  3. Step 3: Cross multiply
    89,290.77x = 123,221.16 × 49,004.63
  4. Step 4: Simplify right side
    89,290.77x = 6,038,407,408.68
  5. Step 5: Solve for x
    x = 6,038,407,408.68/89,290.77
  6. Step 6: Final answer
    x = 67,626.34

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.