Home / 82,955.16-124,433.19-20,625.66

Finding the Fourth Proportional to 82,955.16, 124,433.19 and 20,625.66

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Solution

The fourth proportional to 82,955.16, 124,433.19 and 20,625.66 is: 30,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,955.16 : 124,433.19 = 20,625.66 : x
  2. Step 2: Convert to fraction form
    82,955.16/124,433.19 = 20,625.66/x
  3. Step 3: Cross multiply
    82,955.16x = 124,433.19 × 20,625.66
  4. Step 4: Simplify right side
    82,955.16x = 2,566,516,669.66
  5. Step 5: Solve for x
    x = 2,566,516,669.66/82,955.16
  6. Step 6: Final answer
    x = 30,938.60

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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.