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Finding the Fourth Proportional to 58,479.52, 87,711 and 19,037.20

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Solution

The fourth proportional to 58,479.52, 87,711 and 19,037.20 is: 28,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,479.52 : 87,711 = 19,037.20 : x
  2. Step 2: Convert to fraction form
    58,479.52/87,711 = 19,037.20/x
  3. Step 3: Cross multiply
    58,479.52x = 87,711 × 19,037.20
  4. Step 4: Simplify right side
    58,479.52x = 1,669,771,849.20
  5. Step 5: Solve for x
    x = 1,669,771,849.20/58,479.52
  6. Step 6: Final answer
    x = 28,553.10

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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.