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Finding the Fourth Proportional to 70,269.53, 96,974.16 and 38,438.40

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Solution

The fourth proportional to 70,269.53, 96,974.16 and 38,438.40 is: 53,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,269.53 : 96,974.16 = 38,438.40 : x
  2. Step 2: Convert to fraction form
    70,269.53/96,974.16 = 38,438.40/x
  3. Step 3: Cross multiply
    70,269.53x = 96,974.16 × 38,438.40
  4. Step 4: Simplify right side
    70,269.53x = 3,727,531,441.99
  5. Step 5: Solve for x
    x = 3,727,531,441.99/70,269.53
  6. Step 6: Final answer
    x = 53,046.20

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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.