Home / 78,966.91-108,974.16-44,975.40

Finding the Fourth Proportional to 78,966.91, 108,974.16 and 44,975.40

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Solution

The fourth proportional to 78,966.91, 108,974.16 and 44,975.40 is: 62,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,966.91 : 108,974.16 = 44,975.40 : x
  2. Step 2: Convert to fraction form
    78,966.91/108,974.16 = 44,975.40/x
  3. Step 3: Cross multiply
    78,966.91x = 108,974.16 × 44,975.40
  4. Step 4: Simplify right side
    78,966.91x = 4,901,156,027.01
  5. Step 5: Solve for x
    x = 4,901,156,027.01/78,966.91
  6. Step 6: Final answer
    x = 62,065.95

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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.