Home / 75,121.24-103,668.78-43,284.76

Finding the Fourth Proportional to 75,121.24, 103,668.78 and 43,284.76

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Solution

The fourth proportional to 75,121.24, 103,668.78 and 43,284.76 is: 59,733.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,121.24 : 103,668.78 = 43,284.76 : x
  2. Step 2: Convert to fraction form
    75,121.24/103,668.78 = 43,284.76/x
  3. Step 3: Cross multiply
    75,121.24x = 103,668.78 × 43,284.76
  4. Step 4: Simplify right side
    75,121.24x = 4,487,278,261.79
  5. Step 5: Solve for x
    x = 4,487,278,261.79/75,121.24
  6. Step 6: Final answer
    x = 59,733.82

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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.