Home / 83,140.60-124,727.10-33,212.20

Finding the Fourth Proportional to 83,140.60, 124,727.10 and 33,212.20

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Solution

The fourth proportional to 83,140.60, 124,727.10 and 33,212.20 is: 49,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,140.60 : 124,727.10 = 33,212.20 : x
  2. Step 2: Convert to fraction form
    83,140.60/124,727.10 = 33,212.20/x
  3. Step 3: Cross multiply
    83,140.60x = 124,727.10 × 33,212.20
  4. Step 4: Simplify right side
    83,140.60x = 4,142,461,390.62
  5. Step 5: Solve for x
    x = 4,142,461,390.62/83,140.60
  6. Step 6: Final answer
    x = 49,824.77

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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.