Home / 45,187.76-67,717.08-19,856.96

Finding the Fourth Proportional to 45,187.76, 67,717.08 and 19,856.96

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Solution

The fourth proportional to 45,187.76, 67,717.08 and 19,856.96 is: 29,757.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,187.76 : 67,717.08 = 19,856.96 : x
  2. Step 2: Convert to fraction form
    45,187.76/67,717.08 = 19,856.96/x
  3. Step 3: Cross multiply
    45,187.76x = 67,717.08 × 19,856.96
  4. Step 4: Simplify right side
    45,187.76x = 1,344,655,348.88
  5. Step 5: Solve for x
    x = 1,344,655,348.88/45,187.76
  6. Step 6: Final answer
    x = 29,757.07

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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.