Home / 77,658.57-116,335.62-40,243.19

Finding the Fourth Proportional to 77,658.57, 116,335.62 and 40,243.19

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Solution

The fourth proportional to 77,658.57, 116,335.62 and 40,243.19 is: 60,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,658.57 : 116,335.62 = 40,243.19 : x
  2. Step 2: Convert to fraction form
    77,658.57/116,335.62 = 40,243.19/x
  3. Step 3: Cross multiply
    77,658.57x = 116,335.62 × 40,243.19
  4. Step 4: Simplify right side
    77,658.57x = 4,681,715,777.14
  5. Step 5: Solve for x
    x = 4,681,715,777.14/77,658.57
  6. Step 6: Final answer
    x = 60,285.89

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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.