Home / 83,030.20-124,529.10-26,856.70

Finding the Fourth Proportional to 83,030.20, 124,529.10 and 26,856.70

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Solution

The fourth proportional to 83,030.20, 124,529.10 and 26,856.70 is: 40,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,030.20 : 124,529.10 = 26,856.70 : x
  2. Step 2: Convert to fraction form
    83,030.20/124,529.10 = 26,856.70/x
  3. Step 3: Cross multiply
    83,030.20x = 124,529.10 × 26,856.70
  4. Step 4: Simplify right side
    83,030.20x = 3,344,440,679.97
  5. Step 5: Solve for x
    x = 3,344,440,679.97/83,030.20
  6. Step 6: Final answer
    x = 40,279.81

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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.