Home / 83,031.70-124,594.94-45,109.12

Finding the Fourth Proportional to 83,031.70, 124,594.94 and 45,109.12

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Solution

The fourth proportional to 83,031.70, 124,594.94 and 45,109.12 is: 67,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,031.70 : 124,594.94 = 45,109.12 : x
  2. Step 2: Convert to fraction form
    83,031.70/124,594.94 = 45,109.12/x
  3. Step 3: Cross multiply
    83,031.70x = 124,594.94 × 45,109.12
  4. Step 4: Simplify right side
    83,031.70x = 5,620,368,099.85
  5. Step 5: Solve for x
    x = 5,620,368,099.85/83,031.70
  6. Step 6: Final answer
    x = 67,689.43

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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.