Home / 72,930.08-109,249.20-57,962.46

Finding the Fourth Proportional to 72,930.08, 109,249.20 and 57,962.46

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Solution

The fourth proportional to 72,930.08, 109,249.20 and 57,962.46 is: 86,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,930.08 : 109,249.20 = 57,962.46 : x
  2. Step 2: Convert to fraction form
    72,930.08/109,249.20 = 57,962.46/x
  3. Step 3: Cross multiply
    72,930.08x = 109,249.20 × 57,962.46
  4. Step 4: Simplify right side
    72,930.08x = 6,332,352,385.03
  5. Step 5: Solve for x
    x = 6,332,352,385.03/72,930.08
  6. Step 6: Final answer
    x = 86,827.72

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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.