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Finding the Fourth Proportional to 61,371.60, 92,044.08 and 21,931.44

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Solution

The fourth proportional to 61,371.60, 92,044.08 and 21,931.44 is: 32,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,371.60 : 92,044.08 = 21,931.44 : x
  2. Step 2: Convert to fraction form
    61,371.60/92,044.08 = 21,931.44/x
  3. Step 3: Cross multiply
    61,371.60x = 92,044.08 × 21,931.44
  4. Step 4: Simplify right side
    61,371.60x = 2,018,659,217.88
  5. Step 5: Solve for x
    x = 2,018,659,217.88/61,371.60
  6. Step 6: Final answer
    x = 32,892.40

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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.