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Finding the Fourth Proportional to 71,967.30, 99,288.63 and 45,110.94

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Solution

The fourth proportional to 71,967.30, 99,288.63 and 45,110.94 is: 62,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,967.30 : 99,288.63 = 45,110.94 : x
  2. Step 2: Convert to fraction form
    71,967.30/99,288.63 = 45,110.94/x
  3. Step 3: Cross multiply
    71,967.30x = 99,288.63 × 45,110.94
  4. Step 4: Simplify right side
    71,967.30x = 4,479,003,430.61
  5. Step 5: Solve for x
    x = 4,479,003,430.61/71,967.30
  6. Step 6: Final answer
    x = 62,236.65

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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.