Home / 51,797.79-77,685.44-18,520.15

Finding the Fourth Proportional to 51,797.79, 77,685.44 and 18,520.15

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Solution

The fourth proportional to 51,797.79, 77,685.44 and 18,520.15 is: 27,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,797.79 : 77,685.44 = 18,520.15 : x
  2. Step 2: Convert to fraction form
    51,797.79/77,685.44 = 18,520.15/x
  3. Step 3: Cross multiply
    51,797.79x = 77,685.44 × 18,520.15
  4. Step 4: Simplify right side
    51,797.79x = 1,438,746,001.62
  5. Step 5: Solve for x
    x = 1,438,746,001.62/51,797.79
  6. Step 6: Final answer
    x = 27,776.20

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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.