Home / 70,211.28-96,891.56-38,380.16

Finding the Fourth Proportional to 70,211.28, 96,891.56 and 38,380.16

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Solution

The fourth proportional to 70,211.28, 96,891.56 and 38,380.16 is: 52,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,211.28 : 96,891.56 = 38,380.16 : x
  2. Step 2: Convert to fraction form
    70,211.28/96,891.56 = 38,380.16/x
  3. Step 3: Cross multiply
    70,211.28x = 96,891.56 × 38,380.16
  4. Step 4: Simplify right side
    70,211.28x = 3,718,713,575.45
  5. Step 5: Solve for x
    x = 3,718,713,575.45/70,211.28
  6. Step 6: Final answer
    x = 52,964.62

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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.