Home / 89,425.83-123,407.28-51,185.19

Finding the Fourth Proportional to 89,425.83, 123,407.28 and 51,185.19

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Solution

The fourth proportional to 89,425.83, 123,407.28 and 51,185.19 is: 70,635.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,425.83 : 123,407.28 = 51,185.19 : x
  2. Step 2: Convert to fraction form
    89,425.83/123,407.28 = 51,185.19/x
  3. Step 3: Cross multiply
    89,425.83x = 123,407.28 × 51,185.19
  4. Step 4: Simplify right side
    89,425.83x = 6,316,625,074.18
  5. Step 5: Solve for x
    x = 6,316,625,074.18/89,425.83
  6. Step 6: Final answer
    x = 70,635.35

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Double scale
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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.