Home / 71,260.11-98,338.32-42,578.21

Finding the Fourth Proportional to 71,260.11, 98,338.32 and 42,578.21

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Solution

The fourth proportional to 71,260.11, 98,338.32 and 42,578.21 is: 58,757.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,260.11 : 98,338.32 = 42,578.21 : x
  2. Step 2: Convert to fraction form
    71,260.11/98,338.32 = 42,578.21/x
  3. Step 3: Cross multiply
    71,260.11x = 98,338.32 × 42,578.21
  4. Step 4: Simplify right side
    71,260.11x = 4,187,069,885.85
  5. Step 5: Solve for x
    x = 4,187,069,885.85/71,260.11
  6. Step 6: Final answer
    x = 58,757.56

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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.