Home / 83,439.56-115,149.36-45,716.24

Finding the Fourth Proportional to 83,439.56, 115,149.36 and 45,716.24

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Solution

The fourth proportional to 83,439.56, 115,149.36 and 45,716.24 is: 63,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,439.56 : 115,149.36 = 45,716.24 : x
  2. Step 2: Convert to fraction form
    83,439.56/115,149.36 = 45,716.24/x
  3. Step 3: Cross multiply
    83,439.56x = 115,149.36 × 45,716.24
  4. Step 4: Simplify right side
    83,439.56x = 5,264,195,777.61
  5. Step 5: Solve for x
    x = 5,264,195,777.61/83,439.56
  6. Step 6: Final answer
    x = 63,089.93

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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.