Home / 71,249.35-98,318.67-39,417.56

Finding the Fourth Proportional to 71,249.35, 98,318.67 and 39,417.56

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Solution

The fourth proportional to 71,249.35, 98,318.67 and 39,417.56 is: 54,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,249.35 : 98,318.67 = 39,417.56 : x
  2. Step 2: Convert to fraction form
    71,249.35/98,318.67 = 39,417.56/x
  3. Step 3: Cross multiply
    71,249.35x = 98,318.67 × 39,417.56
  4. Step 4: Simplify right side
    71,249.35x = 3,875,482,073.85
  5. Step 5: Solve for x
    x = 3,875,482,073.85/71,249.35
  6. Step 6: Final answer
    x = 54,393.23

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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.