Home / 83,545.12-115,294.80-45,821.92

Finding the Fourth Proportional to 83,545.12, 115,294.80 and 45,821.92

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Solution

The fourth proportional to 83,545.12, 115,294.80 and 45,821.92 is: 63,235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,545.12 : 115,294.80 = 45,821.92 : x
  2. Step 2: Convert to fraction form
    83,545.12/115,294.80 = 45,821.92/x
  3. Step 3: Cross multiply
    83,545.12x = 115,294.80 × 45,821.92
  4. Step 4: Simplify right side
    83,545.12x = 5,283,029,102.02
  5. Step 5: Solve for x
    x = 5,283,029,102.02/83,545.12
  6. Step 6: Final answer
    x = 63,235.64

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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.