Home / 71,535.48-98,720.82-39,271.56

Finding the Fourth Proportional to 71,535.48, 98,720.82 and 39,271.56

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Solution

The fourth proportional to 71,535.48, 98,720.82 and 39,271.56 is: 54,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,535.48 : 98,720.82 = 39,271.56 : x
  2. Step 2: Convert to fraction form
    71,535.48/98,720.82 = 39,271.56/x
  3. Step 3: Cross multiply
    71,535.48x = 98,720.82 × 39,271.56
  4. Step 4: Simplify right side
    71,535.48x = 3,876,920,605.88
  5. Step 5: Solve for x
    x = 3,876,920,605.88/71,535.48
  6. Step 6: Final answer
    x = 54,195.77

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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.