Home / 51,541.62-77,345.28-51,119.76

Finding the Fourth Proportional to 51,541.62, 77,345.28 and 51,119.76

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Solution

The fourth proportional to 51,541.62, 77,345.28 and 51,119.76 is: 76,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,541.62 : 77,345.28 = 51,119.76 : x
  2. Step 2: Convert to fraction form
    51,541.62/77,345.28 = 51,119.76/x
  3. Step 3: Cross multiply
    51,541.62x = 77,345.28 × 51,119.76
  4. Step 4: Simplify right side
    51,541.62x = 3,953,872,150.73
  5. Step 5: Solve for x
    x = 3,953,872,150.73/51,541.62
  6. Step 6: Final answer
    x = 76,712.22

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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.