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Finding the Fourth Proportional to 58,645.59, 87,964.03 and 18,663

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Solution

The fourth proportional to 58,645.59, 87,964.03 and 18,663 is: 27,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,645.59 : 87,964.03 = 18,663 : x
  2. Step 2: Convert to fraction form
    58,645.59/87,964.03 = 18,663/x
  3. Step 3: Cross multiply
    58,645.59x = 87,964.03 × 18,663
  4. Step 4: Simplify right side
    58,645.59x = 1,641,672,691.89
  5. Step 5: Solve for x
    x = 1,641,672,691.89/58,645.59
  6. Step 6: Final answer
    x = 27,993.11

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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.