Home / 84,565.15-126,862.27-28,410.62

Finding the Fourth Proportional to 84,565.15, 126,862.27 and 28,410.62

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Solution

The fourth proportional to 84,565.15, 126,862.27 and 28,410.62 is: 42,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,565.15 : 126,862.27 = 28,410.62 : x
  2. Step 2: Convert to fraction form
    84,565.15/126,862.27 = 28,410.62/x
  3. Step 3: Cross multiply
    84,565.15x = 126,862.27 × 28,410.62
  4. Step 4: Simplify right side
    84,565.15x = 3,604,235,039.97
  5. Step 5: Solve for x
    x = 3,604,235,039.97/84,565.15
  6. Step 6: Final answer
    x = 42,620.81

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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.