Home / 51,709.66-77,545.33-18,420.88

Finding the Fourth Proportional to 51,709.66, 77,545.33 and 18,420.88

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Solution

The fourth proportional to 51,709.66, 77,545.33 and 18,420.88 is: 27,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,709.66 : 77,545.33 = 18,420.88 : x
  2. Step 2: Convert to fraction form
    51,709.66/77,545.33 = 18,420.88/x
  3. Step 3: Cross multiply
    51,709.66x = 77,545.33 × 18,420.88
  4. Step 4: Simplify right side
    51,709.66x = 1,428,453,218.49
  5. Step 5: Solve for x
    x = 1,428,453,218.49/51,709.66
  6. Step 6: Final answer
    x = 27,624.49

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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.