Home / 83,577.16-125,366.04-21,247.66

Finding the Fourth Proportional to 83,577.16, 125,366.04 and 21,247.66

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Solution

The fourth proportional to 83,577.16, 125,366.04 and 21,247.66 is: 31,871.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,577.16 : 125,366.04 = 21,247.66 : x
  2. Step 2: Convert to fraction form
    83,577.16/125,366.04 = 21,247.66/x
  3. Step 3: Cross multiply
    83,577.16x = 125,366.04 × 21,247.66
  4. Step 4: Simplify right side
    83,577.16x = 2,663,734,993.47
  5. Step 5: Solve for x
    x = 2,663,734,993.47/83,577.16
  6. Step 6: Final answer
    x = 31,871.57

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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.