Home / 72,826.22-109,212.89-25,428

Finding the Fourth Proportional to 72,826.22, 109,212.89 and 25,428

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Solution

The fourth proportional to 72,826.22, 109,212.89 and 25,428 is: 38,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,826.22 : 109,212.89 = 25,428 : x
  2. Step 2: Convert to fraction form
    72,826.22/109,212.89 = 25,428/x
  3. Step 3: Cross multiply
    72,826.22x = 109,212.89 × 25,428
  4. Step 4: Simplify right side
    72,826.22x = 2,777,065,239.78
  5. Step 5: Solve for x
    x = 2,777,065,239.78/72,826.22
  6. Step 6: Final answer
    x = 38,132.77

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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.