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Finding the Fourth Proportional to 63,670.80, 95,443.20 and 28,151.40

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Solution

The fourth proportional to 63,670.80, 95,443.20 and 28,151.40 is: 42,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,670.80 : 95,443.20 = 28,151.40 : x
  2. Step 2: Convert to fraction form
    63,670.80/95,443.20 = 28,151.40/x
  3. Step 3: Cross multiply
    63,670.80x = 95,443.20 × 28,151.40
  4. Step 4: Simplify right side
    63,670.80x = 2,686,859,700.48
  5. Step 5: Solve for x
    x = 2,686,859,700.48/63,670.80
  6. Step 6: Final answer
    x = 42,199.25

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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.