Home / 83,450.76-125,176.23-21,121.26

Finding the Fourth Proportional to 83,450.76, 125,176.23 and 21,121.26

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Solution

The fourth proportional to 83,450.76, 125,176.23 and 21,121.26 is: 31,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,450.76 : 125,176.23 = 21,121.26 : x
  2. Step 2: Convert to fraction form
    83,450.76/125,176.23 = 21,121.26/x
  3. Step 3: Cross multiply
    83,450.76x = 125,176.23 × 21,121.26
  4. Step 4: Simplify right side
    83,450.76x = 2,643,879,699.65
  5. Step 5: Solve for x
    x = 2,643,879,699.65/83,450.76
  6. Step 6: Final answer
    x = 31,681.91

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1.5x scale

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.