Home / 89,146.60-123,006.18-57,308.20

Finding the Fourth Proportional to 89,146.60, 123,006.18 and 57,308.20

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Solution

The fourth proportional to 89,146.60, 123,006.18 and 57,308.20 is: 79,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,146.60 : 123,006.18 = 57,308.20 : x
  2. Step 2: Convert to fraction form
    89,146.60/123,006.18 = 57,308.20/x
  3. Step 3: Cross multiply
    89,146.60x = 123,006.18 × 57,308.20
  4. Step 4: Simplify right side
    89,146.60x = 7,049,262,764.68
  5. Step 5: Solve for x
    x = 7,049,262,764.68/89,146.60
  6. Step 6: Final answer
    x = 79,074.95

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1.5x scale

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.