Home / 83,644.07-115,425.69-45,402.80

Finding the Fourth Proportional to 83,644.07, 115,425.69 and 45,402.80

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Solution

The fourth proportional to 83,644.07, 115,425.69 and 45,402.80 is: 62,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,644.07 : 115,425.69 = 45,402.80 : x
  2. Step 2: Convert to fraction form
    83,644.07/115,425.69 = 45,402.80/x
  3. Step 3: Cross multiply
    83,644.07x = 115,425.69 × 45,402.80
  4. Step 4: Simplify right side
    83,644.07x = 5,240,649,517.93
  5. Step 5: Solve for x
    x = 5,240,649,517.93/83,644.07
  6. Step 6: Final answer
    x = 62,654.17

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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.