Home / 83,187.14-114,802.90-54,872.78

Finding the Fourth Proportional to 83,187.14, 114,802.90 and 54,872.78

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Solution

The fourth proportional to 83,187.14, 114,802.90 and 54,872.78 is: 75,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,187.14 : 114,802.90 = 54,872.78 : x
  2. Step 2: Convert to fraction form
    83,187.14/114,802.90 = 54,872.78/x
  3. Step 3: Cross multiply
    83,187.14x = 114,802.90 × 54,872.78
  4. Step 4: Simplify right side
    83,187.14x = 6,299,554,275.06
  5. Step 5: Solve for x
    x = 6,299,554,275.06/83,187.14
  6. Step 6: Final answer
    x = 75,727.50

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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.