Home / 86,002.10-129,052.92-36,077.72

Finding the Fourth Proportional to 86,002.10, 129,052.92 and 36,077.72

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Solution

The fourth proportional to 86,002.10, 129,052.92 and 36,077.72 is: 54,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,002.10 : 129,052.92 = 36,077.72 : x
  2. Step 2: Convert to fraction form
    86,002.10/129,052.92 = 36,077.72/x
  3. Step 3: Cross multiply
    86,002.10x = 129,052.92 × 36,077.72
  4. Step 4: Simplify right side
    86,002.10x = 4,655,935,112.94
  5. Step 5: Solve for x
    x = 4,655,935,112.94/86,002.10
  6. Step 6: Final answer
    x = 54,137.46

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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.