Home / 83,744.60-125,616.90-31,143.20

Finding the Fourth Proportional to 83,744.60, 125,616.90 and 31,143.20

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Solution

The fourth proportional to 83,744.60, 125,616.90 and 31,143.20 is: 46,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,744.60 : 125,616.90 = 31,143.20 : x
  2. Step 2: Convert to fraction form
    83,744.60/125,616.90 = 31,143.20/x
  3. Step 3: Cross multiply
    83,744.60x = 125,616.90 × 31,143.20
  4. Step 4: Simplify right side
    83,744.60x = 3,912,112,240.08
  5. Step 5: Solve for x
    x = 3,912,112,240.08/83,744.60
  6. Step 6: Final answer
    x = 46,714.80

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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.