Home / 83,178.08-114,787.68-45,454.40

Finding the Fourth Proportional to 83,178.08, 114,787.68 and 45,454.40

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Solution

The fourth proportional to 83,178.08, 114,787.68 and 45,454.40 is: 62,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,178.08 : 114,787.68 = 45,454.40 : x
  2. Step 2: Convert to fraction form
    83,178.08/114,787.68 = 45,454.40/x
  3. Step 3: Cross multiply
    83,178.08x = 114,787.68 × 45,454.40
  4. Step 4: Simplify right side
    83,178.08x = 5,217,605,121.79
  5. Step 5: Solve for x
    x = 5,217,605,121.79/83,178.08
  6. Step 6: Final answer
    x = 62,728.13

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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.