Home / 83,455.18-115,169.61-45,727.18

Finding the Fourth Proportional to 83,455.18, 115,169.61 and 45,727.18

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Solution

The fourth proportional to 83,455.18, 115,169.61 and 45,727.18 is: 63,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,455.18 : 115,169.61 = 45,727.18 : x
  2. Step 2: Convert to fraction form
    83,455.18/115,169.61 = 45,727.18/x
  3. Step 3: Cross multiply
    83,455.18x = 115,169.61 × 45,727.18
  4. Step 4: Simplify right side
    83,455.18x = 5,266,381,487.00
  5. Step 5: Solve for x
    x = 5,266,381,487.00/83,455.18
  6. Step 6: Final answer
    x = 63,104.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.