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Finding the Fourth Proportional to 81,955.52, 122,855.52 and 29,337.92

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Solution

The fourth proportional to 81,955.52, 122,855.52 and 29,337.92 is: 43,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,955.52 : 122,855.52 = 29,337.92 : x
  2. Step 2: Convert to fraction form
    81,955.52/122,855.52 = 29,337.92/x
  3. Step 3: Cross multiply
    81,955.52x = 122,855.52 × 29,337.92
  4. Step 4: Simplify right side
    81,955.52x = 3,604,325,417.32
  5. Step 5: Solve for x
    x = 3,604,325,417.32/81,955.52
  6. Step 6: Final answer
    x = 43,979.04

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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.