Home / 51,349.20-77,023.80-40,981.20

Finding the Fourth Proportional to 51,349.20, 77,023.80 and 40,981.20

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Solution

The fourth proportional to 51,349.20, 77,023.80 and 40,981.20 is: 61,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,349.20 : 77,023.80 = 40,981.20 : x
  2. Step 2: Convert to fraction form
    51,349.20/77,023.80 = 40,981.20/x
  3. Step 3: Cross multiply
    51,349.20x = 77,023.80 × 40,981.20
  4. Step 4: Simplify right side
    51,349.20x = 3,156,527,752.56
  5. Step 5: Solve for x
    x = 3,156,527,752.56/51,349.20
  6. Step 6: Final answer
    x = 61,471.80

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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.