Home / 83,137.24-114,695.43-61,385.65

Finding the Fourth Proportional to 83,137.24, 114,695.43 and 61,385.65

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Solution

The fourth proportional to 83,137.24, 114,695.43 and 61,385.65 is: 84,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,137.24 : 114,695.43 = 61,385.65 : x
  2. Step 2: Convert to fraction form
    83,137.24/114,695.43 = 61,385.65/x
  3. Step 3: Cross multiply
    83,137.24x = 114,695.43 × 61,385.65
  4. Step 4: Simplify right side
    83,137.24x = 7,040,653,005.64
  5. Step 5: Solve for x
    x = 7,040,653,005.64/83,137.24
  6. Step 6: Final answer
    x = 84,687.11

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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.