Home / 82,960.80-124,304.40-47,839.20

Finding the Fourth Proportional to 82,960.80, 124,304.40 and 47,839.20

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Solution

The fourth proportional to 82,960.80, 124,304.40 and 47,839.20 is: 71,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,960.80 : 124,304.40 = 47,839.20 : x
  2. Step 2: Convert to fraction form
    82,960.80/124,304.40 = 47,839.20/x
  3. Step 3: Cross multiply
    82,960.80x = 124,304.40 × 47,839.20
  4. Step 4: Simplify right side
    82,960.80x = 5,946,623,052.48
  5. Step 5: Solve for x
    x = 5,946,623,052.48/82,960.80
  6. Step 6: Final answer
    x = 71,679.91

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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.