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Finding the Fourth Proportional to 82,000.80, 123,058.80 and 35,287.20

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Solution

The fourth proportional to 82,000.80, 123,058.80 and 35,287.20 is: 52,955.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,000.80 : 123,058.80 = 35,287.20 : x
  2. Step 2: Convert to fraction form
    82,000.80/123,058.80 = 35,287.20/x
  3. Step 3: Cross multiply
    82,000.80x = 123,058.80 × 35,287.20
  4. Step 4: Simplify right side
    82,000.80x = 4,342,400,487.36
  5. Step 5: Solve for x
    x = 4,342,400,487.36/82,000.80
  6. Step 6: Final answer
    x = 52,955.59

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1.5x scale

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.