Home / 43,297.20-64,945.80-40,705.20

Finding the Fourth Proportional to 43,297.20, 64,945.80 and 40,705.20

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Solution

The fourth proportional to 43,297.20, 64,945.80 and 40,705.20 is: 61,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,297.20 : 64,945.80 = 40,705.20 : x
  2. Step 2: Convert to fraction form
    43,297.20/64,945.80 = 40,705.20/x
  3. Step 3: Cross multiply
    43,297.20x = 64,945.80 × 40,705.20
  4. Step 4: Simplify right side
    43,297.20x = 2,643,631,778.16
  5. Step 5: Solve for x
    x = 2,643,631,778.16/43,297.20
  6. Step 6: Final answer
    x = 61,057.80

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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.