Home / 83,124.40-124,600.20-45,626.80

Finding the Fourth Proportional to 83,124.40, 124,600.20 and 45,626.80

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Solution

The fourth proportional to 83,124.40, 124,600.20 and 45,626.80 is: 68,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,124.40 : 124,600.20 = 45,626.80 : x
  2. Step 2: Convert to fraction form
    83,124.40/124,600.20 = 45,626.80/x
  3. Step 3: Cross multiply
    83,124.40x = 124,600.20 × 45,626.80
  4. Step 4: Simplify right side
    83,124.40x = 5,685,108,405.36
  5. Step 5: Solve for x
    x = 5,685,108,405.36/83,124.40
  6. Step 6: Final answer
    x = 68,392.78

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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.