Home / 82,966.40-124,490.10-38,570.30

Finding the Fourth Proportional to 82,966.40, 124,490.10 and 38,570.30

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Solution

The fourth proportional to 82,966.40, 124,490.10 and 38,570.30 is: 57,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,966.40 : 124,490.10 = 38,570.30 : x
  2. Step 2: Convert to fraction form
    82,966.40/124,490.10 = 38,570.30/x
  3. Step 3: Cross multiply
    82,966.40x = 124,490.10 × 38,570.30
  4. Step 4: Simplify right side
    82,966.40x = 4,801,620,504.03
  5. Step 5: Solve for x
    x = 4,801,620,504.03/82,966.40
  6. Step 6: Final answer
    x = 57,874.28

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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.