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Finding the Fourth Proportional to 63,378.65, 87,480 and 37,902.53

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Solution

The fourth proportional to 63,378.65, 87,480 and 37,902.53 is: 52,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,378.65 : 87,480 = 37,902.53 : x
  2. Step 2: Convert to fraction form
    63,378.65/87,480 = 37,902.53/x
  3. Step 3: Cross multiply
    63,378.65x = 87,480 × 37,902.53
  4. Step 4: Simplify right side
    63,378.65x = 3,315,713,543.10
  5. Step 5: Solve for x
    x = 3,315,713,543.10/63,378.65
  6. Step 6: Final answer
    x = 52,315.94

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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.