Home / 57,764.63-79,715.19-31,268.63

Finding the Fourth Proportional to 57,764.63, 79,715.19 and 31,268.63

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Solution

The fourth proportional to 57,764.63, 79,715.19 and 31,268.63 is: 43,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,764.63 : 79,715.19 = 31,268.63 : x
  2. Step 2: Convert to fraction form
    57,764.63/79,715.19 = 31,268.63/x
  3. Step 3: Cross multiply
    57,764.63x = 79,715.19 × 31,268.63
  4. Step 4: Simplify right side
    57,764.63x = 2,492,584,382.91
  5. Step 5: Solve for x
    x = 2,492,584,382.91/57,764.63
  6. Step 6: Final answer
    x = 43,150.71

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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.