Home / 40,965.60-61,448.40-29,215.20

Finding the Fourth Proportional to 40,965.60, 61,448.40 and 29,215.20

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Solution

The fourth proportional to 40,965.60, 61,448.40 and 29,215.20 is: 43,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,965.60 : 61,448.40 = 29,215.20 : x
  2. Step 2: Convert to fraction form
    40,965.60/61,448.40 = 29,215.20/x
  3. Step 3: Cross multiply
    40,965.60x = 61,448.40 × 29,215.20
  4. Step 4: Simplify right side
    40,965.60x = 1,795,227,295.68
  5. Step 5: Solve for x
    x = 1,795,227,295.68/40,965.60
  6. Step 6: Final answer
    x = 43,822.80

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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.