Home / 83,989.24-115,864.31-53,750.32

Finding the Fourth Proportional to 83,989.24, 115,864.31 and 53,750.32

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Solution

The fourth proportional to 83,989.24, 115,864.31 and 53,750.32 is: 74,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,989.24 : 115,864.31 = 53,750.32 : x
  2. Step 2: Convert to fraction form
    83,989.24/115,864.31 = 53,750.32/x
  3. Step 3: Cross multiply
    83,989.24x = 115,864.31 × 53,750.32
  4. Step 4: Simplify right side
    83,989.24x = 6,227,743,583.79
  5. Step 5: Solve for x
    x = 6,227,743,583.79/83,989.24
  6. Step 6: Final answer
    x = 74,149.30

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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.