Home / 43,140.76-64,684.34-18,167.95

Finding the Fourth Proportional to 43,140.76, 64,684.34 and 18,167.95

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Solution

The fourth proportional to 43,140.76, 64,684.34 and 18,167.95 is: 27,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.76 : 64,684.34 = 18,167.95 : x
  2. Step 2: Convert to fraction form
    43,140.76/64,684.34 = 18,167.95/x
  3. Step 3: Cross multiply
    43,140.76x = 64,684.34 × 18,167.95
  4. Step 4: Simplify right side
    43,140.76x = 1,175,181,764.06
  5. Step 5: Solve for x
    x = 1,175,181,764.06/43,140.76
  6. Step 6: Final answer
    x = 27,240.64

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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.