Home / 83,869.22-115,744.34-48,065.20

Finding the Fourth Proportional to 83,869.22, 115,744.34 and 48,065.20

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Solution

The fourth proportional to 83,869.22, 115,744.34 and 48,065.20 is: 66,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,869.22 : 115,744.34 = 48,065.20 : x
  2. Step 2: Convert to fraction form
    83,869.22/115,744.34 = 48,065.20/x
  3. Step 3: Cross multiply
    83,869.22x = 115,744.34 × 48,065.20
  4. Step 4: Simplify right side
    83,869.22x = 5,563,274,681.77
  5. Step 5: Solve for x
    x = 5,563,274,681.77/83,869.22
  6. Step 6: Final answer
    x = 66,332.73

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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.