Home / 77,218.38-115,609.14-49,068.66

Finding the Fourth Proportional to 77,218.38, 115,609.14 and 49,068.66

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Solution

The fourth proportional to 77,218.38, 115,609.14 and 49,068.66 is: 73,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,218.38 : 115,609.14 = 49,068.66 : x
  2. Step 2: Convert to fraction form
    77,218.38/115,609.14 = 49,068.66/x
  3. Step 3: Cross multiply
    77,218.38x = 115,609.14 × 49,068.66
  4. Step 4: Simplify right side
    77,218.38x = 5,672,785,583.55
  5. Step 5: Solve for x
    x = 5,672,785,583.55/77,218.38
  6. Step 6: Final answer
    x = 73,464.19

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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.