Home / 81,602.08-122,391.60-26,190.88

Finding the Fourth Proportional to 81,602.08, 122,391.60 and 26,190.88

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Solution

The fourth proportional to 81,602.08, 122,391.60 and 26,190.88 is: 39,282.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,602.08 : 122,391.60 = 26,190.88 : x
  2. Step 2: Convert to fraction form
    81,602.08/122,391.60 = 26,190.88/x
  3. Step 3: Cross multiply
    81,602.08x = 122,391.60 × 26,190.88
  4. Step 4: Simplify right side
    81,602.08x = 3,205,543,708.61
  5. Step 5: Solve for x
    x = 3,205,543,708.61/81,602.08
  6. Step 6: Final answer
    x = 39,282.62

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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.