Home / 75,275.88-103,868.91-43,438.74

Finding the Fourth Proportional to 75,275.88, 103,868.91 and 43,438.74

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Solution

The fourth proportional to 75,275.88, 103,868.91 and 43,438.74 is: 59,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.88 : 103,868.91 = 43,438.74 : x
  2. Step 2: Convert to fraction form
    75,275.88/103,868.91 = 43,438.74/x
  3. Step 3: Cross multiply
    75,275.88x = 103,868.91 × 43,438.74
  4. Step 4: Simplify right side
    75,275.88x = 4,511,934,575.57
  5. Step 5: Solve for x
    x = 4,511,934,575.57/75,275.88
  6. Step 6: Final answer
    x = 59,938.65

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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.