Home / 83,712.30-125,568.45-28,308.30

Finding the Fourth Proportional to 83,712.30, 125,568.45 and 28,308.30

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Solution

The fourth proportional to 83,712.30, 125,568.45 and 28,308.30 is: 42,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,712.30 : 125,568.45 = 28,308.30 : x
  2. Step 2: Convert to fraction form
    83,712.30/125,568.45 = 28,308.30/x
  3. Step 3: Cross multiply
    83,712.30x = 125,568.45 × 28,308.30
  4. Step 4: Simplify right side
    83,712.30x = 3,554,629,353.14
  5. Step 5: Solve for x
    x = 3,554,629,353.14/83,712.30
  6. Step 6: Final answer
    x = 42,462.45

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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.