Home / 81,834.65-122,751.98-25,683.42

Finding the Fourth Proportional to 81,834.65, 122,751.98 and 25,683.42

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Solution

The fourth proportional to 81,834.65, 122,751.98 and 25,683.42 is: 38,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,834.65 : 122,751.98 = 25,683.42 : x
  2. Step 2: Convert to fraction form
    81,834.65/122,751.98 = 25,683.42/x
  3. Step 3: Cross multiply
    81,834.65x = 122,751.98 × 25,683.42
  4. Step 4: Simplify right side
    81,834.65x = 3,152,690,658.17
  5. Step 5: Solve for x
    x = 3,152,690,658.17/81,834.65
  6. Step 6: Final answer
    x = 38,525.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.