Home / 75,113.88-103,537.35-50,907.30

Finding the Fourth Proportional to 75,113.88, 103,537.35 and 50,907.30

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Solution

The fourth proportional to 75,113.88, 103,537.35 and 50,907.30 is: 70,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,113.88 : 103,537.35 = 50,907.30 : x
  2. Step 2: Convert to fraction form
    75,113.88/103,537.35 = 50,907.30/x
  3. Step 3: Cross multiply
    75,113.88x = 103,537.35 × 50,907.30
  4. Step 4: Simplify right side
    75,113.88x = 5,270,806,937.66
  5. Step 5: Solve for x
    x = 5,270,806,937.66/75,113.88
  6. Step 6: Final answer
    x = 70,170.88

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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.