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Finding the Fourth Proportional to 63,288.82, 87,318.84 and 42,071.68

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Solution

The fourth proportional to 63,288.82, 87,318.84 and 42,071.68 is: 58,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,288.82 : 87,318.84 = 42,071.68 : x
  2. Step 2: Convert to fraction form
    63,288.82/87,318.84 = 42,071.68/x
  3. Step 3: Cross multiply
    63,288.82x = 87,318.84 × 42,071.68
  4. Step 4: Simplify right side
    63,288.82x = 3,673,650,294.45
  5. Step 5: Solve for x
    x = 3,673,650,294.45/63,288.82
  6. Step 6: Final answer
    x = 58,045.80

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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.