Home / 71,279.24-98,363.94-39,446.28

Finding the Fourth Proportional to 71,279.24, 98,363.94 and 39,446.28

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Solution

The fourth proportional to 71,279.24, 98,363.94 and 39,446.28 is: 54,435.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,279.24 : 98,363.94 = 39,446.28 : x
  2. Step 2: Convert to fraction form
    71,279.24/98,363.94 = 39,446.28/x
  3. Step 3: Cross multiply
    71,279.24x = 98,363.94 × 39,446.28
  4. Step 4: Simplify right side
    71,279.24x = 3,880,091,519.14
  5. Step 5: Solve for x
    x = 3,880,091,519.14/71,279.24
  6. Step 6: Final answer
    x = 54,435.09

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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.