Home / 83,730.30-125,595.45-21,400.80

Finding the Fourth Proportional to 83,730.30, 125,595.45 and 21,400.80

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Solution

The fourth proportional to 83,730.30, 125,595.45 and 21,400.80 is: 32,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,730.30 : 125,595.45 = 21,400.80 : x
  2. Step 2: Convert to fraction form
    83,730.30/125,595.45 = 21,400.80/x
  3. Step 3: Cross multiply
    83,730.30x = 125,595.45 × 21,400.80
  4. Step 4: Simplify right side
    83,730.30x = 2,687,843,106.36
  5. Step 5: Solve for x
    x = 2,687,843,106.36/83,730.30
  6. Step 6: Final answer
    x = 32,101.20

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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.