Home / 83,574.95-115,263.27-54,872.62

Finding the Fourth Proportional to 83,574.95, 115,263.27 and 54,872.62

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Solution

The fourth proportional to 83,574.95, 115,263.27 and 54,872.62 is: 75,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,574.95 : 115,263.27 = 54,872.62 : x
  2. Step 2: Convert to fraction form
    83,574.95/115,263.27 = 54,872.62/x
  3. Step 3: Cross multiply
    83,574.95x = 115,263.27 × 54,872.62
  4. Step 4: Simplify right side
    83,574.95x = 6,324,797,326.51
  5. Step 5: Solve for x
    x = 6,324,797,326.51/83,574.95
  6. Step 6: Final answer
    x = 75,678.15

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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.