Home / 71,501.19-98,671.68-39,670.13

Finding the Fourth Proportional to 71,501.19, 98,671.68 and 39,670.13

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Solution

The fourth proportional to 71,501.19, 98,671.68 and 39,670.13 is: 54,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,501.19 : 98,671.68 = 39,670.13 : x
  2. Step 2: Convert to fraction form
    71,501.19/98,671.68 = 39,670.13/x
  3. Step 3: Cross multiply
    71,501.19x = 98,671.68 × 39,670.13
  4. Step 4: Simplify right side
    71,501.19x = 3,914,317,879.56
  5. Step 5: Solve for x
    x = 3,914,317,879.56/71,501.19
  6. Step 6: Final answer
    x = 54,744.79

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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.