Home / 66,217.52-99,217.05-38,161.15

Finding the Fourth Proportional to 66,217.52, 99,217.05 and 38,161.15

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Solution

The fourth proportional to 66,217.52, 99,217.05 and 38,161.15 is: 57,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.52 : 99,217.05 = 38,161.15 : x
  2. Step 2: Convert to fraction form
    66,217.52/99,217.05 = 38,161.15/x
  3. Step 3: Cross multiply
    66,217.52x = 99,217.05 × 38,161.15
  4. Step 4: Simplify right side
    66,217.52x = 3,786,236,746.69
  5. Step 5: Solve for x
    x = 3,786,236,746.69/66,217.52
  6. Step 6: Final answer
    x = 57,178.77

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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.