Home / 83,435.26-125,152.98-21,105.76

Finding the Fourth Proportional to 83,435.26, 125,152.98 and 21,105.76

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Solution

The fourth proportional to 83,435.26, 125,152.98 and 21,105.76 is: 31,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,435.26 : 125,152.98 = 21,105.76 : x
  2. Step 2: Convert to fraction form
    83,435.26/125,152.98 = 21,105.76/x
  3. Step 3: Cross multiply
    83,435.26x = 125,152.98 × 21,105.76
  4. Step 4: Simplify right side
    83,435.26x = 2,641,448,759.16
  5. Step 5: Solve for x
    x = 2,641,448,759.16/83,435.26
  6. Step 6: Final answer
    x = 31,658.66

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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.