Home / 83,872.17-115,742.43-45,631.27

Finding the Fourth Proportional to 83,872.17, 115,742.43 and 45,631.27

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Solution

The fourth proportional to 83,872.17, 115,742.43 and 45,631.27 is: 62,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,872.17 : 115,742.43 = 45,631.27 : x
  2. Step 2: Convert to fraction form
    83,872.17/115,742.43 = 45,631.27/x
  3. Step 3: Cross multiply
    83,872.17x = 115,742.43 × 45,631.27
  4. Step 4: Simplify right side
    83,872.17x = 5,281,474,073.79
  5. Step 5: Solve for x
    x = 5,281,474,073.79/83,872.17
  6. Step 6: Final answer
    x = 62,970.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.