Home / 76,575.38-114,617.30-40,947.70

Finding the Fourth Proportional to 76,575.38, 114,617.30 and 40,947.70

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Solution

The fourth proportional to 76,575.38, 114,617.30 and 40,947.70 is: 61,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,575.38 : 114,617.30 = 40,947.70 : x
  2. Step 2: Convert to fraction form
    76,575.38/114,617.30 = 40,947.70/x
  3. Step 3: Cross multiply
    76,575.38x = 114,617.30 × 40,947.70
  4. Step 4: Simplify right side
    76,575.38x = 4,693,314,815.21
  5. Step 5: Solve for x
    x = 4,693,314,815.21/76,575.38
  6. Step 6: Final answer
    x = 61,290.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.