Home / 83,778.32-115,614.79-45,537.87

Finding the Fourth Proportional to 83,778.32, 115,614.79 and 45,537.87

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Solution

The fourth proportional to 83,778.32, 115,614.79 and 45,537.87 is: 62,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,778.32 : 115,614.79 = 45,537.87 : x
  2. Step 2: Convert to fraction form
    83,778.32/115,614.79 = 45,537.87/x
  3. Step 3: Cross multiply
    83,778.32x = 115,614.79 × 45,537.87
  4. Step 4: Simplify right side
    83,778.32x = 5,264,850,873.81
  5. Step 5: Solve for x
    x = 5,264,850,873.81/83,778.32
  6. Step 6: Final answer
    x = 62,842.64

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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.