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Finding the Fourth Proportional to 80,838.72, 111,552.48 and 45,026.88

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Solution

The fourth proportional to 80,838.72, 111,552.48 and 45,026.88 is: 62,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,838.72 : 111,552.48 = 45,026.88 : x
  2. Step 2: Convert to fraction form
    80,838.72/111,552.48 = 45,026.88/x
  3. Step 3: Cross multiply
    80,838.72x = 111,552.48 × 45,026.88
  4. Step 4: Simplify right side
    80,838.72x = 5,022,860,130.66
  5. Step 5: Solve for x
    x = 5,022,860,130.66/80,838.72
  6. Step 6: Final answer
    x = 62,134.34

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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.