Home / 83,656.34-115,394.75-49,642.11

Finding the Fourth Proportional to 83,656.34, 115,394.75 and 49,642.11

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Solution

The fourth proportional to 83,656.34, 115,394.75 and 49,642.11 is: 68,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,656.34 : 115,394.75 = 49,642.11 : x
  2. Step 2: Convert to fraction form
    83,656.34/115,394.75 = 49,642.11/x
  3. Step 3: Cross multiply
    83,656.34x = 115,394.75 × 49,642.11
  4. Step 4: Simplify right side
    83,656.34x = 5,728,438,624.71
  5. Step 5: Solve for x
    x = 5,728,438,624.71/83,656.34
  6. Step 6: Final answer
    x = 68,475.85

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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.