Home / 86,449.04-129,672.24-52,724.96

Finding the Fourth Proportional to 86,449.04, 129,672.24 and 52,724.96

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Solution

The fourth proportional to 86,449.04, 129,672.24 and 52,724.96 is: 79,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,449.04 : 129,672.24 = 52,724.96 : x
  2. Step 2: Convert to fraction form
    86,449.04/129,672.24 = 52,724.96/x
  3. Step 3: Cross multiply
    86,449.04x = 129,672.24 × 52,724.96
  4. Step 4: Simplify right side
    86,449.04x = 6,836,963,667.11
  5. Step 5: Solve for x
    x = 6,836,963,667.11/86,449.04
  6. Step 6: Final answer
    x = 79,086.63

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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.