Home / 55,173.06-82,801.17-40,419.78

Finding the Fourth Proportional to 55,173.06, 82,801.17 and 40,419.78

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Solution

The fourth proportional to 55,173.06, 82,801.17 and 40,419.78 is: 60,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,173.06 : 82,801.17 = 40,419.78 : x
  2. Step 2: Convert to fraction form
    55,173.06/82,801.17 = 40,419.78/x
  3. Step 3: Cross multiply
    55,173.06x = 82,801.17 × 40,419.78
  4. Step 4: Simplify right side
    55,173.06x = 3,346,805,075.14
  5. Step 5: Solve for x
    x = 3,346,805,075.14/55,173.06
  6. Step 6: Final answer
    x = 60,660.13

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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.