Home / 43,815.80-65,739.90-42,195.80

Finding the Fourth Proportional to 43,815.80, 65,739.90 and 42,195.80

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Solution

The fourth proportional to 43,815.80, 65,739.90 and 42,195.80 is: 63,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,815.80 : 65,739.90 = 42,195.80 : x
  2. Step 2: Convert to fraction form
    43,815.80/65,739.90 = 42,195.80/x
  3. Step 3: Cross multiply
    43,815.80x = 65,739.90 × 42,195.80
  4. Step 4: Simplify right side
    43,815.80x = 2,773,947,672.42
  5. Step 5: Solve for x
    x = 2,773,947,672.42/43,815.80
  6. Step 6: Final answer
    x = 63,309.30

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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.