Home / 83,187.12-114,802.92-54,872.76

Finding the Fourth Proportional to 83,187.12, 114,802.92 and 54,872.76

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Solution

The fourth proportional to 83,187.12, 114,802.92 and 54,872.76 is: 75,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,187.12 : 114,802.92 = 54,872.76 : x
  2. Step 2: Convert to fraction form
    83,187.12/114,802.92 = 54,872.76/x
  3. Step 3: Cross multiply
    83,187.12x = 114,802.92 × 54,872.76
  4. Step 4: Simplify right side
    83,187.12x = 6,299,553,076.46
  5. Step 5: Solve for x
    x = 6,299,553,076.46/83,187.12
  6. Step 6: Final answer
    x = 75,727.51

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1.5x scale

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.