Home / 82,757.49-124,039.02-38,290.29

Finding the Fourth Proportional to 82,757.49, 124,039.02 and 38,290.29

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Solution

The fourth proportional to 82,757.49, 124,039.02 and 38,290.29 is: 57,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,757.49 : 124,039.02 = 38,290.29 : x
  2. Step 2: Convert to fraction form
    82,757.49/124,039.02 = 38,290.29/x
  3. Step 3: Cross multiply
    82,757.49x = 124,039.02 × 38,290.29
  4. Step 4: Simplify right side
    82,757.49x = 4,749,490,047.12
  5. Step 5: Solve for x
    x = 4,749,490,047.12/82,757.49
  6. Step 6: Final answer
    x = 57,390.46

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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.