Home / 79,264.25-118,900.55-20,100.43

Finding the Fourth Proportional to 79,264.25, 118,900.55 and 20,100.43

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Solution

The fourth proportional to 79,264.25, 118,900.55 and 20,100.43 is: 30,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,264.25 : 118,900.55 = 20,100.43 : x
  2. Step 2: Convert to fraction form
    79,264.25/118,900.55 = 20,100.43/x
  3. Step 3: Cross multiply
    79,264.25x = 118,900.55 × 20,100.43
  4. Step 4: Simplify right side
    79,264.25x = 2,389,952,182.24
  5. Step 5: Solve for x
    x = 2,389,952,182.24/79,264.25
  6. Step 6: Final answer
    x = 30,151.70

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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.