Home / 45,734.63-68,531.13-31,721.90

Finding the Fourth Proportional to 45,734.63, 68,531.13 and 31,721.90

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Solution

The fourth proportional to 45,734.63, 68,531.13 and 31,721.90 is: 47,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,734.63 : 68,531.13 = 31,721.90 : x
  2. Step 2: Convert to fraction form
    45,734.63/68,531.13 = 31,721.90/x
  3. Step 3: Cross multiply
    45,734.63x = 68,531.13 × 31,721.90
  4. Step 4: Simplify right side
    45,734.63x = 2,173,937,310.09
  5. Step 5: Solve for x
    x = 2,173,937,310.09/45,734.63
  6. Step 6: Final answer
    x = 47,533.73

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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.