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Finding the Fourth Proportional to 43,345, 59,820.52 and 31,255.44

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Solution

The fourth proportional to 43,345, 59,820.52 and 31,255.44 is: 43,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,345 : 59,820.52 = 31,255.44 : x
  2. Step 2: Convert to fraction form
    43,345/59,820.52 = 31,255.44/x
  3. Step 3: Cross multiply
    43,345x = 59,820.52 × 31,255.44
  4. Step 4: Simplify right side
    43,345x = 1,869,716,673.63
  5. Step 5: Solve for x
    x = 1,869,716,673.63/43,345
  6. Step 6: Final answer
    x = 43,135.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.