Home / 40,805.42-61,080.92-31,421.06

Finding the Fourth Proportional to 40,805.42, 61,080.92 and 31,421.06

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Solution

The fourth proportional to 40,805.42, 61,080.92 and 31,421.06 is: 47,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.42 : 61,080.92 = 31,421.06 : x
  2. Step 2: Convert to fraction form
    40,805.42/61,080.92 = 31,421.06/x
  3. Step 3: Cross multiply
    40,805.42x = 61,080.92 × 31,421.06
  4. Step 4: Simplify right side
    40,805.42x = 1,919,227,025.32
  5. Step 5: Solve for x
    x = 1,919,227,025.32/40,805.42
  6. Step 6: Final answer
    x = 47,033.64

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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.