Home / 60,720.47-91,086.78-18,600.07

Finding the Fourth Proportional to 60,720.47, 91,086.78 and 18,600.07

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Solution

The fourth proportional to 60,720.47, 91,086.78 and 18,600.07 is: 27,901.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,720.47 : 91,086.78 = 18,600.07 : x
  2. Step 2: Convert to fraction form
    60,720.47/91,086.78 = 18,600.07/x
  3. Step 3: Cross multiply
    60,720.47x = 91,086.78 × 18,600.07
  4. Step 4: Simplify right side
    60,720.47x = 1,694,220,209.86
  5. Step 5: Solve for x
    x = 1,694,220,209.86/60,720.47
  6. Step 6: Final answer
    x = 27,901.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.