Home / 89,539.54-123,470.74-66,842.12

Finding the Fourth Proportional to 89,539.54, 123,470.74 and 66,842.12

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Solution

The fourth proportional to 89,539.54, 123,470.74 and 66,842.12 is: 92,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,539.54 : 123,470.74 = 66,842.12 : x
  2. Step 2: Convert to fraction form
    89,539.54/123,470.74 = 66,842.12/x
  3. Step 3: Cross multiply
    89,539.54x = 123,470.74 × 66,842.12
  4. Step 4: Simplify right side
    89,539.54x = 8,253,046,019.57
  5. Step 5: Solve for x
    x = 8,253,046,019.57/89,539.54
  6. Step 6: Final answer
    x = 92,172.08

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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.