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Finding the Fourth Proportional to 92,258.80, 138,318.48 and 38,967.28

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Solution

The fourth proportional to 92,258.80, 138,318.48 and 38,967.28 is: 58,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,258.80 : 138,318.48 = 38,967.28 : x
  2. Step 2: Convert to fraction form
    92,258.80/138,318.48 = 38,967.28/x
  3. Step 3: Cross multiply
    92,258.80x = 138,318.48 × 38,967.28
  4. Step 4: Simplify right side
    92,258.80x = 5,389,894,939.33
  5. Step 5: Solve for x
    x = 5,389,894,939.33/92,258.80
  6. Step 6: Final answer
    x = 58,421.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.