Home / 43,145.30-64,717.90-13,565.72

Finding the Fourth Proportional to 43,145.30, 64,717.90 and 13,565.72

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Solution

The fourth proportional to 43,145.30, 64,717.90 and 13,565.72 is: 20,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,145.30 : 64,717.90 = 13,565.72 : x
  2. Step 2: Convert to fraction form
    43,145.30/64,717.90 = 13,565.72/x
  3. Step 3: Cross multiply
    43,145.30x = 64,717.90 × 13,565.72
  4. Step 4: Simplify right side
    43,145.30x = 877,944,910.39
  5. Step 5: Solve for x
    x = 877,944,910.39/43,145.30
  6. Step 6: Final answer
    x = 20,348.56

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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.