Home / 89,788.52-123,903.05-51,539.95

Finding the Fourth Proportional to 89,788.52, 123,903.05 and 51,539.95

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Solution

The fourth proportional to 89,788.52, 123,903.05 and 51,539.95 is: 71,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,788.52 : 123,903.05 = 51,539.95 : x
  2. Step 2: Convert to fraction form
    89,788.52/123,903.05 = 51,539.95/x
  3. Step 3: Cross multiply
    89,788.52x = 123,903.05 × 51,539.95
  4. Step 4: Simplify right side
    89,788.52x = 6,385,956,491.98
  5. Step 5: Solve for x
    x = 6,385,956,491.98/89,788.52
  6. Step 6: Final answer
    x = 71,122.20

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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.