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Finding the Fourth Proportional to 60,963.60, 91,445.40 and 19,414.80

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Solution

The fourth proportional to 60,963.60, 91,445.40 and 19,414.80 is: 29,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,963.60 : 91,445.40 = 19,414.80 : x
  2. Step 2: Convert to fraction form
    60,963.60/91,445.40 = 19,414.80/x
  3. Step 3: Cross multiply
    60,963.60x = 91,445.40 × 19,414.80
  4. Step 4: Simplify right side
    60,963.60x = 1,775,394,151.92
  5. Step 5: Solve for x
    x = 1,775,394,151.92/60,963.60
  6. Step 6: Final answer
    x = 29,122.20

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1.5x scale

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.