Home / 89,460.78-123,415.26-55,460.22

Finding the Fourth Proportional to 89,460.78, 123,415.26 and 55,460.22

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Solution

The fourth proportional to 89,460.78, 123,415.26 and 55,460.22 is: 76,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,460.78 : 123,415.26 = 55,460.22 : x
  2. Step 2: Convert to fraction form
    89,460.78/123,415.26 = 55,460.22/x
  3. Step 3: Cross multiply
    89,460.78x = 123,415.26 × 55,460.22
  4. Step 4: Simplify right side
    89,460.78x = 6,844,637,470.96
  5. Step 5: Solve for x
    x = 6,844,637,470.96/89,460.78
  6. Step 6: Final answer
    x = 76,509.92

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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.