Home / 86,807.38-130,221.48-30,635.88

Finding the Fourth Proportional to 86,807.38, 130,221.48 and 30,635.88

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Solution

The fourth proportional to 86,807.38, 130,221.48 and 30,635.88 is: 45,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,807.38 : 130,221.48 = 30,635.88 : x
  2. Step 2: Convert to fraction form
    86,807.38/130,221.48 = 30,635.88/x
  3. Step 3: Cross multiply
    86,807.38x = 130,221.48 × 30,635.88
  4. Step 4: Simplify right side
    86,807.38x = 3,989,449,634.70
  5. Step 5: Solve for x
    x = 3,989,449,634.70/86,807.38
  6. Step 6: Final answer
    x = 45,957.49

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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.