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Finding the Fourth Proportional to 70,382.88, 97,130.88 and 38,553.12

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Solution

The fourth proportional to 70,382.88, 97,130.88 and 38,553.12 is: 53,204.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.88 : 97,130.88 = 38,553.12 : x
  2. Step 2: Convert to fraction form
    70,382.88/97,130.88 = 38,553.12/x
  3. Step 3: Cross multiply
    70,382.88x = 97,130.88 × 38,553.12
  4. Step 4: Simplify right side
    70,382.88x = 3,744,698,472.35
  5. Step 5: Solve for x
    x = 3,744,698,472.35/70,382.88
  6. Step 6: Final answer
    x = 53,204.68

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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.