Home / 100,033.26-138,043.94-54,711.08

Finding the Fourth Proportional to 100,033.26, 138,043.94 and 54,711.08

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Solution

The fourth proportional to 100,033.26, 138,043.94 and 54,711.08 is: 75,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,033.26 : 138,043.94 = 54,711.08 : x
  2. Step 2: Convert to fraction form
    100,033.26/138,043.94 = 54,711.08/x
  3. Step 3: Cross multiply
    100,033.26x = 138,043.94 × 54,711.08
  4. Step 4: Simplify right side
    100,033.26x = 7,552,533,044.86
  5. Step 5: Solve for x
    x = 7,552,533,044.86/100,033.26
  6. Step 6: Final answer
    x = 75,500.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.