Home / 51,631.85-71,247.57-28,967.78

Finding the Fourth Proportional to 51,631.85, 71,247.57 and 28,967.78

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Solution

The fourth proportional to 51,631.85, 71,247.57 and 28,967.78 is: 39,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,631.85 : 71,247.57 = 28,967.78 : x
  2. Step 2: Convert to fraction form
    51,631.85/71,247.57 = 28,967.78/x
  3. Step 3: Cross multiply
    51,631.85x = 71,247.57 × 28,967.78
  4. Step 4: Simplify right side
    51,631.85x = 2,063,883,933.29
  5. Step 5: Solve for x
    x = 2,063,883,933.29/51,631.85
  6. Step 6: Final answer
    x = 39,973.08

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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.