Home / 71,491.42-98,660.19-39,227.50

Finding the Fourth Proportional to 71,491.42, 98,660.19 and 39,227.50

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Solution

The fourth proportional to 71,491.42, 98,660.19 and 39,227.50 is: 54,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,491.42 : 98,660.19 = 39,227.50 : x
  2. Step 2: Convert to fraction form
    71,491.42/98,660.19 = 39,227.50/x
  3. Step 3: Cross multiply
    71,491.42x = 98,660.19 × 39,227.50
  4. Step 4: Simplify right side
    71,491.42x = 3,870,192,603.23
  5. Step 5: Solve for x
    x = 3,870,192,603.23/71,491.42
  6. Step 6: Final answer
    x = 54,135.06

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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.