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Finding the Fourth Proportional to 60,690.52, 91,048.77 and 21,248.92

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Solution

The fourth proportional to 60,690.52, 91,048.77 and 21,248.92 is: 31,877.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,690.52 : 91,048.77 = 21,248.92 : x
  2. Step 2: Convert to fraction form
    60,690.52/91,048.77 = 21,248.92/x
  3. Step 3: Cross multiply
    60,690.52x = 91,048.77 × 21,248.92
  4. Step 4: Simplify right side
    60,690.52x = 1,934,687,468.34
  5. Step 5: Solve for x
    x = 1,934,687,468.34/60,690.52
  6. Step 6: Final answer
    x = 31,877.92

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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.