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Finding the Fourth Proportional to 70,909.95, 97,854.48 and 38,644.86

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Solution

The fourth proportional to 70,909.95, 97,854.48 and 38,644.86 is: 53,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,909.95 : 97,854.48 = 38,644.86 : x
  2. Step 2: Convert to fraction form
    70,909.95/97,854.48 = 38,644.86/x
  3. Step 3: Cross multiply
    70,909.95x = 97,854.48 × 38,644.86
  4. Step 4: Simplify right side
    70,909.95x = 3,781,572,679.97
  5. Step 5: Solve for x
    x = 3,781,572,679.97/70,909.95
  6. Step 6: Final answer
    x = 53,329.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.