Home / 43,655.22-65,115.59-42,343.38

Finding the Fourth Proportional to 43,655.22, 65,115.59 and 42,343.38

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Solution

The fourth proportional to 43,655.22, 65,115.59 and 42,343.38 is: 63,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,655.22 : 65,115.59 = 42,343.38 : x
  2. Step 2: Convert to fraction form
    43,655.22/65,115.59 = 42,343.38/x
  3. Step 3: Cross multiply
    43,655.22x = 65,115.59 × 42,343.38
  4. Step 4: Simplify right side
    43,655.22x = 2,757,214,171.29
  5. Step 5: Solve for x
    x = 2,757,214,171.29/43,655.22
  6. Step 6: Final answer
    x = 63,158.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.