Home / 58,221.83-87,329.69-18,778.95

Finding the Fourth Proportional to 58,221.83, 87,329.69 and 18,778.95

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Solution

The fourth proportional to 58,221.83, 87,329.69 and 18,778.95 is: 28,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.83 : 87,329.69 = 18,778.95 : x
  2. Step 2: Convert to fraction form
    58,221.83/87,329.69 = 18,778.95/x
  3. Step 3: Cross multiply
    58,221.83x = 87,329.69 × 18,778.95
  4. Step 4: Simplify right side
    58,221.83x = 1,639,959,788.13
  5. Step 5: Solve for x
    x = 1,639,959,788.13/58,221.83
  6. Step 6: Final answer
    x = 28,167.44

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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.