Home / 51,540.62-77,343.78-51,118.76

Finding the Fourth Proportional to 51,540.62, 77,343.78 and 51,118.76

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Solution

The fourth proportional to 51,540.62, 77,343.78 and 51,118.76 is: 76,710.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.62 : 77,343.78 = 51,118.76 : x
  2. Step 2: Convert to fraction form
    51,540.62/77,343.78 = 51,118.76/x
  3. Step 3: Cross multiply
    51,540.62x = 77,343.78 × 51,118.76
  4. Step 4: Simplify right side
    51,540.62x = 3,953,718,127.31
  5. Step 5: Solve for x
    x = 3,953,718,127.31/51,540.62
  6. Step 6: Final answer
    x = 76,710.72

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1.5x scale

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.