Home / 51,540.60-71,125.12-28,879.53

Finding the Fourth Proportional to 51,540.60, 71,125.12 and 28,879.53

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Solution

The fourth proportional to 51,540.60, 71,125.12 and 28,879.53 is: 39,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.60 : 71,125.12 = 28,879.53 : x
  2. Step 2: Convert to fraction form
    51,540.60/71,125.12 = 28,879.53/x
  3. Step 3: Cross multiply
    51,540.60x = 71,125.12 × 28,879.53
  4. Step 4: Simplify right side
    51,540.60x = 2,054,060,036.79
  5. Step 5: Solve for x
    x = 2,054,060,036.79/51,540.60
  6. Step 6: Final answer
    x = 39,853.24

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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.