Home / 83,825.80-125,738.70-21,496.30

Finding the Fourth Proportional to 83,825.80, 125,738.70 and 21,496.30

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Solution

The fourth proportional to 83,825.80, 125,738.70 and 21,496.30 is: 32,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,825.80 : 125,738.70 = 21,496.30 : x
  2. Step 2: Convert to fraction form
    83,825.80/125,738.70 = 21,496.30/x
  3. Step 3: Cross multiply
    83,825.80x = 125,738.70 × 21,496.30
  4. Step 4: Simplify right side
    83,825.80x = 2,702,916,816.81
  5. Step 5: Solve for x
    x = 2,702,916,816.81/83,825.80
  6. Step 6: Final answer
    x = 32,244.45

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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.