Home / 83,931.12-125,850.65-33,278.83

Finding the Fourth Proportional to 83,931.12, 125,850.65 and 33,278.83

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Solution

The fourth proportional to 83,931.12, 125,850.65 and 33,278.83 is: 49,899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,931.12 : 125,850.65 = 33,278.83 : x
  2. Step 2: Convert to fraction form
    83,931.12/125,850.65 = 33,278.83/x
  3. Step 3: Cross multiply
    83,931.12x = 125,850.65 × 33,278.83
  4. Step 4: Simplify right side
    83,931.12x = 4,188,162,386.74
  5. Step 5: Solve for x
    x = 4,188,162,386.74/83,931.12
  6. Step 6: Final answer
    x = 49,899.99

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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.