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Finding the Fourth Proportional to 65,881.60, 98,822.40 and 36,284.20

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Solution

The fourth proportional to 65,881.60, 98,822.40 and 36,284.20 is: 54,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,881.60 : 98,822.40 = 36,284.20 : x
  2. Step 2: Convert to fraction form
    65,881.60/98,822.40 = 36,284.20/x
  3. Step 3: Cross multiply
    65,881.60x = 98,822.40 × 36,284.20
  4. Step 4: Simplify right side
    65,881.60x = 3,585,691,726.08
  5. Step 5: Solve for x
    x = 3,585,691,726.08/65,881.60
  6. Step 6: Final answer
    x = 54,426.30

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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.