Home / 83,731.74-115,521.22-51,889.02

Finding the Fourth Proportional to 83,731.74, 115,521.22 and 51,889.02

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Solution

The fourth proportional to 83,731.74, 115,521.22 and 51,889.02 is: 71,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.74 : 115,521.22 = 51,889.02 : x
  2. Step 2: Convert to fraction form
    83,731.74/115,521.22 = 51,889.02/x
  3. Step 3: Cross multiply
    83,731.74x = 115,521.22 × 51,889.02
  4. Step 4: Simplify right side
    83,731.74x = 5,994,282,895.00
  5. Step 5: Solve for x
    x = 5,994,282,895.00/83,731.74
  6. Step 6: Final answer
    x = 71,589.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.