Home / 43,816.20-65,724.30-40,187.40

Finding the Fourth Proportional to 43,816.20, 65,724.30 and 40,187.40

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Solution

The fourth proportional to 43,816.20, 65,724.30 and 40,187.40 is: 60,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,816.20 : 65,724.30 = 40,187.40 : x
  2. Step 2: Convert to fraction form
    43,816.20/65,724.30 = 40,187.40/x
  3. Step 3: Cross multiply
    43,816.20x = 65,724.30 × 40,187.40
  4. Step 4: Simplify right side
    43,816.20x = 2,641,288,733.82
  5. Step 5: Solve for x
    x = 2,641,288,733.82/43,816.20
  6. Step 6: Final answer
    x = 60,281.10

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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.