Home / 83,799.50-115,631.28-49,323.74

Finding the Fourth Proportional to 83,799.50, 115,631.28 and 49,323.74

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Solution

The fourth proportional to 83,799.50, 115,631.28 and 49,323.74 is: 68,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,799.50 : 115,631.28 = 49,323.74 : x
  2. Step 2: Convert to fraction form
    83,799.50/115,631.28 = 49,323.74/x
  3. Step 3: Cross multiply
    83,799.50x = 115,631.28 × 49,323.74
  4. Step 4: Simplify right side
    83,799.50x = 5,703,367,479.67
  5. Step 5: Solve for x
    x = 5,703,367,479.67/83,799.50
  6. Step 6: Final answer
    x = 68,059.68

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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.