Home / 83,019.70-124,529.55-76,021.30

Finding the Fourth Proportional to 83,019.70, 124,529.55 and 76,021.30

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Solution

The fourth proportional to 83,019.70, 124,529.55 and 76,021.30 is: 114,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,019.70 : 124,529.55 = 76,021.30 : x
  2. Step 2: Convert to fraction form
    83,019.70/124,529.55 = 76,021.30/x
  3. Step 3: Cross multiply
    83,019.70x = 124,529.55 × 76,021.30
  4. Step 4: Simplify right side
    83,019.70x = 9,466,898,279.42
  5. Step 5: Solve for x
    x = 9,466,898,279.42/83,019.70
  6. Step 6: Final answer
    x = 114,031.95

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1.5x scale

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.