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Finding the Fourth Proportional to 81,896.40, 112,982.04 and 59,248.80

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Solution

The fourth proportional to 81,896.40, 112,982.04 and 59,248.80 is: 81,738.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,896.40 : 112,982.04 = 59,248.80 : x
  2. Step 2: Convert to fraction form
    81,896.40/112,982.04 = 59,248.80/x
  3. Step 3: Cross multiply
    81,896.40x = 112,982.04 × 59,248.80
  4. Step 4: Simplify right side
    81,896.40x = 6,694,050,291.55
  5. Step 5: Solve for x
    x = 6,694,050,291.55/81,896.40
  6. Step 6: Final answer
    x = 81,738.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.