Home / 43,112.87-64,672.02-13,531.86

Finding the Fourth Proportional to 43,112.87, 64,672.02 and 13,531.86

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Solution

The fourth proportional to 43,112.87, 64,672.02 and 13,531.86 is: 20,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,112.87 : 64,672.02 = 13,531.86 : x
  2. Step 2: Convert to fraction form
    43,112.87/64,672.02 = 13,531.86/x
  3. Step 3: Cross multiply
    43,112.87x = 64,672.02 × 13,531.86
  4. Step 4: Simplify right side
    43,112.87x = 875,132,720.56
  5. Step 5: Solve for x
    x = 875,132,720.56/43,112.87
  6. Step 6: Final answer
    x = 20,298.64

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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.