Home / 81,775.17-112,811.62-53,092.66

Finding the Fourth Proportional to 81,775.17, 112,811.62 and 53,092.66

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Solution

The fourth proportional to 81,775.17, 112,811.62 and 53,092.66 is: 73,243.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,775.17 : 112,811.62 = 53,092.66 : x
  2. Step 2: Convert to fraction form
    81,775.17/112,811.62 = 53,092.66/x
  3. Step 3: Cross multiply
    81,775.17x = 112,811.62 × 53,092.66
  4. Step 4: Simplify right side
    81,775.17x = 5,989,468,719.25
  5. Step 5: Solve for x
    x = 5,989,468,719.25/81,775.17
  6. Step 6: Final answer
    x = 73,243.13

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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.