Home / 75,215.24-103,675.22-51,008.20

Finding the Fourth Proportional to 75,215.24, 103,675.22 and 51,008.20

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Solution

The fourth proportional to 75,215.24, 103,675.22 and 51,008.20 is: 70,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,215.24 : 103,675.22 = 51,008.20 : x
  2. Step 2: Convert to fraction form
    75,215.24/103,675.22 = 51,008.20/x
  3. Step 3: Cross multiply
    75,215.24x = 103,675.22 × 51,008.20
  4. Step 4: Simplify right side
    75,215.24x = 5,288,286,356.80
  5. Step 5: Solve for x
    x = 5,288,286,356.80/75,215.24
  6. Step 6: Final answer
    x = 70,308.71

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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.