Home / 67,491.78-101,254.38-20,106.66

Finding the Fourth Proportional to 67,491.78, 101,254.38 and 20,106.66

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Solution

The fourth proportional to 67,491.78, 101,254.38 and 20,106.66 is: 30,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,491.78 : 101,254.38 = 20,106.66 : x
  2. Step 2: Convert to fraction form
    67,491.78/101,254.38 = 20,106.66/x
  3. Step 3: Cross multiply
    67,491.78x = 101,254.38 × 20,106.66
  4. Step 4: Simplify right side
    67,491.78x = 2,035,887,392.17
  5. Step 5: Solve for x
    x = 2,035,887,392.17/67,491.78
  6. Step 6: Final answer
    x = 30,164.97

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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.