Home / 75,209.70-112,785.38-40,130.22

Finding the Fourth Proportional to 75,209.70, 112,785.38 and 40,130.22

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Solution

The fourth proportional to 75,209.70, 112,785.38 and 40,130.22 is: 60,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.70 : 112,785.38 = 40,130.22 : x
  2. Step 2: Convert to fraction form
    75,209.70/112,785.38 = 40,130.22/x
  3. Step 3: Cross multiply
    75,209.70x = 112,785.38 × 40,130.22
  4. Step 4: Simplify right side
    75,209.70x = 4,526,101,548.26
  5. Step 5: Solve for x
    x = 4,526,101,548.26/75,209.70
  6. Step 6: Final answer
    x = 60,179.76

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1.5x scale

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.