Home / 51,005.75-76,508.51-13,565.84

Finding the Fourth Proportional to 51,005.75, 76,508.51 and 13,565.84

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Solution

The fourth proportional to 51,005.75, 76,508.51 and 13,565.84 is: 20,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,005.75 : 76,508.51 = 13,565.84 : x
  2. Step 2: Convert to fraction form
    51,005.75/76,508.51 = 13,565.84/x
  3. Step 3: Cross multiply
    51,005.75x = 76,508.51 × 13,565.84
  4. Step 4: Simplify right side
    51,005.75x = 1,037,901,754.93
  5. Step 5: Solve for x
    x = 1,037,901,754.93/51,005.75
  6. Step 6: Final answer
    x = 20,348.72

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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.