Home / 84,285.95-126,454.29-25,121.61

Finding the Fourth Proportional to 84,285.95, 126,454.29 and 25,121.61

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Solution

The fourth proportional to 84,285.95, 126,454.29 and 25,121.61 is: 37,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,285.95 : 126,454.29 = 25,121.61 : x
  2. Step 2: Convert to fraction form
    84,285.95/126,454.29 = 25,121.61/x
  3. Step 3: Cross multiply
    84,285.95x = 126,454.29 × 25,121.61
  4. Step 4: Simplify right side
    84,285.95x = 3,176,735,924.62
  5. Step 5: Solve for x
    x = 3,176,735,924.62/84,285.95
  6. Step 6: Final answer
    x = 37,689.98

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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.