Home / 272,579.24-408,840.04-72,919.76

Finding the Fourth Proportional to 272,579.24, 408,840.04 and 72,919.76

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Solution

The fourth proportional to 272,579.24, 408,840.04 and 72,919.76 is: 109,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,579.24 : 408,840.04 = 72,919.76 : x
  2. Step 2: Convert to fraction form
    272,579.24/408,840.04 = 72,919.76/x
  3. Step 3: Cross multiply
    272,579.24x = 408,840.04 × 72,919.76
  4. Step 4: Simplify right side
    272,579.24x = 29,812,517,595.19
  5. Step 5: Solve for x
    x = 29,812,517,595.19/272,579.24
  6. Step 6: Final answer
    x = 109,371.93

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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.