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Finding the Fourth Proportional to 70,456.80, 97,229.28 and 38,625.96

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Solution

The fourth proportional to 70,456.80, 97,229.28 and 38,625.96 is: 53,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,456.80 : 97,229.28 = 38,625.96 : x
  2. Step 2: Convert to fraction form
    70,456.80/97,229.28 = 38,625.96/x
  3. Step 3: Cross multiply
    70,456.80x = 97,229.28 × 38,625.96
  4. Step 4: Simplify right side
    70,456.80x = 3,755,574,280.11
  5. Step 5: Solve for x
    x = 3,755,574,280.11/70,456.80
  6. Step 6: Final answer
    x = 53,303.22

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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.