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Finding the Fourth Proportional to 79,990.92, 119,979.36 and 73,726.92

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Solution

The fourth proportional to 79,990.92, 119,979.36 and 73,726.92 is: 110,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,990.92 : 119,979.36 = 73,726.92 : x
  2. Step 2: Convert to fraction form
    79,990.92/119,979.36 = 73,726.92/x
  3. Step 3: Cross multiply
    79,990.92x = 119,979.36 × 73,726.92
  4. Step 4: Simplify right side
    79,990.92x = 8,845,708,676.37
  5. Step 5: Solve for x
    x = 8,845,708,676.37/79,990.92
  6. Step 6: Final answer
    x = 110,583.91

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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.