Home / 86,371.80-129,595.32-30,252.24

Finding the Fourth Proportional to 86,371.80, 129,595.32 and 30,252.24

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Solution

The fourth proportional to 86,371.80, 129,595.32 and 30,252.24 is: 45,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,371.80 : 129,595.32 = 30,252.24 : x
  2. Step 2: Convert to fraction form
    86,371.80/129,595.32 = 30,252.24/x
  3. Step 3: Cross multiply
    86,371.80x = 129,595.32 × 30,252.24
  4. Step 4: Simplify right side
    86,371.80x = 3,920,548,723.52
  5. Step 5: Solve for x
    x = 3,920,548,723.52/86,371.80
  6. Step 6: Final answer
    x = 45,391.54

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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.