Home / 38,478.60-57,653.10-36,145.80

Finding the Fourth Proportional to 38,478.60, 57,653.10 and 36,145.80

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Solution

The fourth proportional to 38,478.60, 57,653.10 and 36,145.80 is: 54,157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.60 : 57,653.10 = 36,145.80 : x
  2. Step 2: Convert to fraction form
    38,478.60/57,653.10 = 36,145.80/x
  3. Step 3: Cross multiply
    38,478.60x = 57,653.10 × 36,145.80
  4. Step 4: Simplify right side
    38,478.60x = 2,083,917,421.98
  5. Step 5: Solve for x
    x = 2,083,917,421.98/38,478.60
  6. Step 6: Final answer
    x = 54,157.83

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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.