Home / 85,456.45-117,829.88-58,248.65

Finding the Fourth Proportional to 85,456.45, 117,829.88 and 58,248.65

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Solution

The fourth proportional to 85,456.45, 117,829.88 and 58,248.65 is: 80,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,456.45 : 117,829.88 = 58,248.65 : x
  2. Step 2: Convert to fraction form
    85,456.45/117,829.88 = 58,248.65/x
  3. Step 3: Cross multiply
    85,456.45x = 117,829.88 × 58,248.65
  4. Step 4: Simplify right side
    85,456.45x = 6,863,430,559.27
  5. Step 5: Solve for x
    x = 6,863,430,559.27/85,456.45
  6. Step 6: Final answer
    x = 80,314.95

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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.