Home / 40,679.21-56,097.86-31,723.44

Finding the Fourth Proportional to 40,679.21, 56,097.86 and 31,723.44

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Solution

The fourth proportional to 40,679.21, 56,097.86 and 31,723.44 is: 43,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,679.21 : 56,097.86 = 31,723.44 : x
  2. Step 2: Convert to fraction form
    40,679.21/56,097.86 = 31,723.44/x
  3. Step 3: Cross multiply
    40,679.21x = 56,097.86 × 31,723.44
  4. Step 4: Simplify right side
    40,679.21x = 1,779,616,937.22
  5. Step 5: Solve for x
    x = 1,779,616,937.22/40,679.21
  6. Step 6: Final answer
    x = 43,747.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.