Home / 115,110.54-172,689.30-48,550.55

Finding the Fourth Proportional to 115,110.54, 172,689.30 and 48,550.55

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Solution

The fourth proportional to 115,110.54, 172,689.30 and 48,550.55 is: 72,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,110.54 : 172,689.30 = 48,550.55 : x
  2. Step 2: Convert to fraction form
    115,110.54/172,689.30 = 48,550.55/x
  3. Step 3: Cross multiply
    115,110.54x = 172,689.30 × 48,550.55
  4. Step 4: Simplify right side
    115,110.54x = 8,384,159,630.67
  5. Step 5: Solve for x
    x = 8,384,159,630.67/115,110.54
  6. Step 6: Final answer
    x = 72,835.72

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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.