Home / 79,639.04-109,897.72-43,822.12

Finding the Fourth Proportional to 79,639.04, 109,897.72 and 43,822.12

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Solution

The fourth proportional to 79,639.04, 109,897.72 and 43,822.12 is: 60,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,639.04 : 109,897.72 = 43,822.12 : x
  2. Step 2: Convert to fraction form
    79,639.04/109,897.72 = 43,822.12/x
  3. Step 3: Cross multiply
    79,639.04x = 109,897.72 × 43,822.12
  4. Step 4: Simplify right side
    79,639.04x = 4,815,951,073.57
  5. Step 5: Solve for x
    x = 4,815,951,073.57/79,639.04
  6. Step 6: Final answer
    x = 60,472.24

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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.