Home / 86,949.28-130,449.92-49,987.36

Finding the Fourth Proportional to 86,949.28, 130,449.92 and 49,987.36

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Solution

The fourth proportional to 86,949.28, 130,449.92 and 49,987.36 is: 74,995.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,949.28 : 130,449.92 = 49,987.36 : x
  2. Step 2: Convert to fraction form
    86,949.28/130,449.92 = 49,987.36/x
  3. Step 3: Cross multiply
    86,949.28x = 130,449.92 × 49,987.36
  4. Step 4: Simplify right side
    86,949.28x = 6,520,847,113.01
  5. Step 5: Solve for x
    x = 6,520,847,113.01/86,949.28
  6. Step 6: Final answer
    x = 74,995.99

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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.