Home / 40,726.80-61,055.52-18,532.40

Finding the Fourth Proportional to 40,726.80, 61,055.52 and 18,532.40

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Solution

The fourth proportional to 40,726.80, 61,055.52 and 18,532.40 is: 27,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,726.80 : 61,055.52 = 18,532.40 : x
  2. Step 2: Convert to fraction form
    40,726.80/61,055.52 = 18,532.40/x
  3. Step 3: Cross multiply
    40,726.80x = 61,055.52 × 18,532.40
  4. Step 4: Simplify right side
    40,726.80x = 1,131,505,318.85
  5. Step 5: Solve for x
    x = 1,131,505,318.85/40,726.80
  6. Step 6: Final answer
    x = 27,782.82

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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.