Home / 81,545.57-122,326.76-28,237.45

Finding the Fourth Proportional to 81,545.57, 122,326.76 and 28,237.45

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Solution

The fourth proportional to 81,545.57, 122,326.76 and 28,237.45 is: 42,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.57 : 122,326.76 = 28,237.45 : x
  2. Step 2: Convert to fraction form
    81,545.57/122,326.76 = 28,237.45/x
  3. Step 3: Cross multiply
    81,545.57x = 122,326.76 × 28,237.45
  4. Step 4: Simplify right side
    81,545.57x = 3,454,195,432.44
  5. Step 5: Solve for x
    x = 3,454,195,432.44/81,545.57
  6. Step 6: Final answer
    x = 42,359.08

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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.