Home / 51,983.76-77,902.20-40,242

Finding the Fourth Proportional to 51,983.76, 77,902.20 and 40,242

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Solution

The fourth proportional to 51,983.76, 77,902.20 and 40,242 is: 60,306.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,983.76 : 77,902.20 = 40,242 : x
  2. Step 2: Convert to fraction form
    51,983.76/77,902.20 = 40,242/x
  3. Step 3: Cross multiply
    51,983.76x = 77,902.20 × 40,242
  4. Step 4: Simplify right side
    51,983.76x = 3,134,940,332.40
  5. Step 5: Solve for x
    x = 3,134,940,332.40/51,983.76
  6. Step 6: Final answer
    x = 60,306.15

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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.