Home / 43,112.66-64,671.72-13,531.66

Finding the Fourth Proportional to 43,112.66, 64,671.72 and 13,531.66

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Solution

The fourth proportional to 43,112.66, 64,671.72 and 13,531.66 is: 20,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,112.66 : 64,671.72 = 13,531.66 : x
  2. Step 2: Convert to fraction form
    43,112.66/64,671.72 = 13,531.66/x
  3. Step 3: Cross multiply
    43,112.66x = 64,671.72 × 13,531.66
  4. Step 4: Simplify right side
    43,112.66x = 875,115,514.23
  5. Step 5: Solve for x
    x = 875,115,514.23/43,112.66
  6. Step 6: Final answer
    x = 20,298.34

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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.