Home / 83,666.79-115,563.11-62,540.37

Finding the Fourth Proportional to 83,666.79, 115,563.11 and 62,540.37

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Solution

The fourth proportional to 83,666.79, 115,563.11 and 62,540.37 is: 86,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,666.79 : 115,563.11 = 62,540.37 : x
  2. Step 2: Convert to fraction form
    83,666.79/115,563.11 = 62,540.37/x
  3. Step 3: Cross multiply
    83,666.79x = 115,563.11 × 62,540.37
  4. Step 4: Simplify right side
    83,666.79x = 7,227,359,345.05
  5. Step 5: Solve for x
    x = 7,227,359,345.05/83,666.79
  6. Step 6: Final answer
    x = 86,382.65

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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.