Home / 272,584.56-408,876.75-72,899.76

Finding the Fourth Proportional to 272,584.56, 408,876.75 and 72,899.76

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Solution

The fourth proportional to 272,584.56, 408,876.75 and 72,899.76 is: 109,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,584.56 : 408,876.75 = 72,899.76 : x
  2. Step 2: Convert to fraction form
    272,584.56/408,876.75 = 72,899.76/x
  3. Step 3: Cross multiply
    272,584.56x = 408,876.75 × 72,899.76
  4. Step 4: Simplify right side
    272,584.56x = 29,807,018,614.55
  5. Step 5: Solve for x
    x = 29,807,018,614.55/272,584.56
  6. Step 6: Final answer
    x = 109,349.62

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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.