Home / 43,822.20-65,738.10-42,439.80

Finding the Fourth Proportional to 43,822.20, 65,738.10 and 42,439.80

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Solution

The fourth proportional to 43,822.20, 65,738.10 and 42,439.80 is: 63,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,822.20 : 65,738.10 = 42,439.80 : x
  2. Step 2: Convert to fraction form
    43,822.20/65,738.10 = 42,439.80/x
  3. Step 3: Cross multiply
    43,822.20x = 65,738.10 × 42,439.80
  4. Step 4: Simplify right side
    43,822.20x = 2,789,911,816.38
  5. Step 5: Solve for x
    x = 2,789,911,816.38/43,822.20
  6. Step 6: Final answer
    x = 63,664.35

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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.