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Finding the Fourth Proportional to 63,758.72, 87,989.76 and 36,902.40

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Solution

The fourth proportional to 63,758.72, 87,989.76 and 36,902.40 is: 50,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,758.72 : 87,989.76 = 36,902.40 : x
  2. Step 2: Convert to fraction form
    63,758.72/87,989.76 = 36,902.40/x
  3. Step 3: Cross multiply
    63,758.72x = 87,989.76 × 36,902.40
  4. Step 4: Simplify right side
    63,758.72x = 3,247,033,319.42
  5. Step 5: Solve for x
    x = 3,247,033,319.42/63,758.72
  6. Step 6: Final answer
    x = 50,926.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.