Home / 45,418.89-68,099.18-31,339.47

Finding the Fourth Proportional to 45,418.89, 68,099.18 and 31,339.47

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Solution

The fourth proportional to 45,418.89, 68,099.18 and 31,339.47 is: 46,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.89 : 68,099.18 = 31,339.47 : x
  2. Step 2: Convert to fraction form
    45,418.89/68,099.18 = 31,339.47/x
  3. Step 3: Cross multiply
    45,418.89x = 68,099.18 × 31,339.47
  4. Step 4: Simplify right side
    45,418.89x = 2,134,192,051.94
  5. Step 5: Solve for x
    x = 2,134,192,051.94/45,418.89
  6. Step 6: Final answer
    x = 46,989.08

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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.