Home / 71,153.28-98,182.98-39,317.82

Finding the Fourth Proportional to 71,153.28, 98,182.98 and 39,317.82

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Solution

The fourth proportional to 71,153.28, 98,182.98 and 39,317.82 is: 54,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.28 : 98,182.98 = 39,317.82 : x
  2. Step 2: Convert to fraction form
    71,153.28/98,182.98 = 39,317.82/x
  3. Step 3: Cross multiply
    71,153.28x = 98,182.98 × 39,317.82
  4. Step 4: Simplify right side
    71,153.28x = 3,860,340,734.70
  5. Step 5: Solve for x
    x = 3,860,340,734.70/71,153.28
  6. Step 6: Final answer
    x = 54,253.87

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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.