Home / 82,821.68-114,264.78-54,158.11

Finding the Fourth Proportional to 82,821.68, 114,264.78 and 54,158.11

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Solution

The fourth proportional to 82,821.68, 114,264.78 and 54,158.11 is: 74,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,821.68 : 114,264.78 = 54,158.11 : x
  2. Step 2: Convert to fraction form
    82,821.68/114,264.78 = 54,158.11/x
  3. Step 3: Cross multiply
    82,821.68x = 114,264.78 × 54,158.11
  4. Step 4: Simplify right side
    82,821.68x = 6,188,364,035.61
  5. Step 5: Solve for x
    x = 6,188,364,035.61/82,821.68
  6. Step 6: Final answer
    x = 74,719.13

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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.