Home / 85,155.90-117,515.17-49,366.65

Finding the Fourth Proportional to 85,155.90, 117,515.17 and 49,366.65

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Solution

The fourth proportional to 85,155.90, 117,515.17 and 49,366.65 is: 68,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,155.90 : 117,515.17 = 49,366.65 : x
  2. Step 2: Convert to fraction form
    85,155.90/117,515.17 = 49,366.65/x
  3. Step 3: Cross multiply
    85,155.90x = 117,515.17 × 49,366.65
  4. Step 4: Simplify right side
    85,155.90x = 5,801,330,437.45
  5. Step 5: Solve for x
    x = 5,801,330,437.45/85,155.90
  6. Step 6: Final answer
    x = 68,126.00

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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.