Home / 89,287.12-123,220.08-53,470.28

Finding the Fourth Proportional to 89,287.12, 123,220.08 and 53,470.28

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Solution

The fourth proportional to 89,287.12, 123,220.08 and 53,470.28 is: 73,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,287.12 : 123,220.08 = 53,470.28 : x
  2. Step 2: Convert to fraction form
    89,287.12/123,220.08 = 53,470.28/x
  3. Step 3: Cross multiply
    89,287.12x = 123,220.08 × 53,470.28
  4. Step 4: Simplify right side
    89,287.12x = 6,588,612,179.22
  5. Step 5: Solve for x
    x = 6,588,612,179.22/89,287.12
  6. Step 6: Final answer
    x = 73,791.29

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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.