Home / 71,777.28-98,981.28-47,904.96

Finding the Fourth Proportional to 71,777.28, 98,981.28 and 47,904.96

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Solution

The fourth proportional to 71,777.28, 98,981.28 and 47,904.96 is: 66,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,777.28 : 98,981.28 = 47,904.96 : x
  2. Step 2: Convert to fraction form
    71,777.28/98,981.28 = 47,904.96/x
  3. Step 3: Cross multiply
    71,777.28x = 98,981.28 × 47,904.96
  4. Step 4: Simplify right side
    71,777.28x = 4,741,694,259.15
  5. Step 5: Solve for x
    x = 4,741,694,259.15/71,777.28
  6. Step 6: Final answer
    x = 66,061.21

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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.