Home / 40,699.20-61,048.80-25,147.20

Finding the Fourth Proportional to 40,699.20, 61,048.80 and 25,147.20

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Solution

The fourth proportional to 40,699.20, 61,048.80 and 25,147.20 is: 37,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,699.20 : 61,048.80 = 25,147.20 : x
  2. Step 2: Convert to fraction form
    40,699.20/61,048.80 = 25,147.20/x
  3. Step 3: Cross multiply
    40,699.20x = 61,048.80 × 25,147.20
  4. Step 4: Simplify right side
    40,699.20x = 1,535,206,383.36
  5. Step 5: Solve for x
    x = 1,535,206,383.36/40,699.20
  6. Step 6: Final answer
    x = 37,720.80

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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.