Home / 71,370.45-98,497.22-39,542.31

Finding the Fourth Proportional to 71,370.45, 98,497.22 and 39,542.31

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Solution

The fourth proportional to 71,370.45, 98,497.22 and 39,542.31 is: 54,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,370.45 : 98,497.22 = 39,542.31 : x
  2. Step 2: Convert to fraction form
    71,370.45/98,497.22 = 39,542.31/x
  3. Step 3: Cross multiply
    71,370.45x = 98,497.22 × 39,542.31
  4. Step 4: Simplify right side
    71,370.45x = 3,894,807,409.67
  5. Step 5: Solve for x
    x = 3,894,807,409.67/71,370.45
  6. Step 6: Final answer
    x = 54,571.71

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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.