Home / 55,476.20-83,117.10-45,561.80

Finding the Fourth Proportional to 55,476.20, 83,117.10 and 45,561.80

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Solution

The fourth proportional to 55,476.20, 83,117.10 and 45,561.80 is: 68,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,476.20 : 83,117.10 = 45,561.80 : x
  2. Step 2: Convert to fraction form
    55,476.20/83,117.10 = 45,561.80/x
  3. Step 3: Cross multiply
    55,476.20x = 83,117.10 × 45,561.80
  4. Step 4: Simplify right side
    55,476.20x = 3,786,964,686.78
  5. Step 5: Solve for x
    x = 3,786,964,686.78/55,476.20
  6. Step 6: Final answer
    x = 68,262.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.