Home / 76,724.68-105,909.78-59,963.08

Finding the Fourth Proportional to 76,724.68, 105,909.78 and 59,963.08

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Solution

The fourth proportional to 76,724.68, 105,909.78 and 59,963.08 is: 82,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,724.68 : 105,909.78 = 59,963.08 : x
  2. Step 2: Convert to fraction form
    76,724.68/105,909.78 = 59,963.08/x
  3. Step 3: Cross multiply
    76,724.68x = 105,909.78 × 59,963.08
  4. Step 4: Simplify right side
    76,724.68x = 6,350,676,610.92
  5. Step 5: Solve for x
    x = 6,350,676,610.92/76,724.68
  6. Step 6: Final answer
    x = 82,772.28

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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.