Home / 71,235.04-98,306.10-39,404.56

Finding the Fourth Proportional to 71,235.04, 98,306.10 and 39,404.56

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Solution

The fourth proportional to 71,235.04, 98,306.10 and 39,404.56 is: 54,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,235.04 : 98,306.10 = 39,404.56 : x
  2. Step 2: Convert to fraction form
    71,235.04/98,306.10 = 39,404.56/x
  3. Step 3: Cross multiply
    71,235.04x = 98,306.10 × 39,404.56
  4. Step 4: Simplify right side
    71,235.04x = 3,873,708,615.82
  5. Step 5: Solve for x
    x = 3,873,708,615.82/71,235.04
  6. Step 6: Final answer
    x = 54,379.26

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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.