Home / 86,087.04-129,013.92-44,563.20

Finding the Fourth Proportional to 86,087.04, 129,013.92 and 44,563.20

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Solution

The fourth proportional to 86,087.04, 129,013.92 and 44,563.20 is: 66,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,087.04 : 129,013.92 = 44,563.20 : x
  2. Step 2: Convert to fraction form
    86,087.04/129,013.92 = 44,563.20/x
  3. Step 3: Cross multiply
    86,087.04x = 129,013.92 × 44,563.20
  4. Step 4: Simplify right side
    86,087.04x = 5,749,273,119.74
  5. Step 5: Solve for x
    x = 5,749,273,119.74/86,087.04
  6. Step 6: Final answer
    x = 66,784.42

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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.