Home / 43,406.29-65,109.38-28,507.47

Finding the Fourth Proportional to 43,406.29, 65,109.38 and 28,507.47

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Solution

The fourth proportional to 43,406.29, 65,109.38 and 28,507.47 is: 42,761.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,406.29 : 65,109.38 = 28,507.47 : x
  2. Step 2: Convert to fraction form
    43,406.29/65,109.38 = 28,507.47/x
  3. Step 3: Cross multiply
    43,406.29x = 65,109.38 × 28,507.47
  4. Step 4: Simplify right side
    43,406.29x = 1,856,103,693.93
  5. Step 5: Solve for x
    x = 1,856,103,693.93/43,406.29
  6. Step 6: Final answer
    x = 42,761.17

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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.