Home / 55,147.02-82,680.21-17,685.78

Finding the Fourth Proportional to 55,147.02, 82,680.21 and 17,685.78

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Solution

The fourth proportional to 55,147.02, 82,680.21 and 17,685.78 is: 26,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147.02 : 82,680.21 = 17,685.78 : x
  2. Step 2: Convert to fraction form
    55,147.02/82,680.21 = 17,685.78/x
  3. Step 3: Cross multiply
    55,147.02x = 82,680.21 × 17,685.78
  4. Step 4: Simplify right side
    55,147.02x = 1,462,264,004.41
  5. Step 5: Solve for x
    x = 1,462,264,004.41/55,147.02
  6. Step 6: Final answer
    x = 26,515.74

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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.