Home / 40,687.45-61,012.04-15,739.25

Finding the Fourth Proportional to 40,687.45, 61,012.04 and 15,739.25

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Solution

The fourth proportional to 40,687.45, 61,012.04 and 15,739.25 is: 23,601.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,687.45 : 61,012.04 = 15,739.25 : x
  2. Step 2: Convert to fraction form
    40,687.45/61,012.04 = 15,739.25/x
  3. Step 3: Cross multiply
    40,687.45x = 61,012.04 × 15,739.25
  4. Step 4: Simplify right side
    40,687.45x = 960,283,366.81
  5. Step 5: Solve for x
    x = 960,283,366.81/40,687.45
  6. Step 6: Final answer
    x = 23,601.46

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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.