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Finding the Fourth Proportional to 63,684.53, 87,870.02 and 39,507.24

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Solution

The fourth proportional to 63,684.53, 87,870.02 and 39,507.24 is: 54,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,684.53 : 87,870.02 = 39,507.24 : x
  2. Step 2: Convert to fraction form
    63,684.53/87,870.02 = 39,507.24/x
  3. Step 3: Cross multiply
    63,684.53x = 87,870.02 × 39,507.24
  4. Step 4: Simplify right side
    63,684.53x = 3,471,502,100.92
  5. Step 5: Solve for x
    x = 3,471,502,100.92/63,684.53
  6. Step 6: Final answer
    x = 54,510.92

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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.