Home / 45,851.16-68,782.86-18,142.68

Finding the Fourth Proportional to 45,851.16, 68,782.86 and 18,142.68

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Solution

The fourth proportional to 45,851.16, 68,782.86 and 18,142.68 is: 27,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,851.16 : 68,782.86 = 18,142.68 : x
  2. Step 2: Convert to fraction form
    45,851.16/68,782.86 = 18,142.68/x
  3. Step 3: Cross multiply
    45,851.16x = 68,782.86 × 18,142.68
  4. Step 4: Simplify right side
    45,851.16x = 1,247,905,418.46
  5. Step 5: Solve for x
    x = 1,247,905,418.46/45,851.16
  6. Step 6: Final answer
    x = 27,216.44

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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.