Home / 57,112.76-78,813.06-31,617.33

Finding the Fourth Proportional to 57,112.76, 78,813.06 and 31,617.33

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Solution

The fourth proportional to 57,112.76, 78,813.06 and 31,617.33 is: 43,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,112.76 : 78,813.06 = 31,617.33 : x
  2. Step 2: Convert to fraction form
    57,112.76/78,813.06 = 31,617.33/x
  3. Step 3: Cross multiply
    57,112.76x = 78,813.06 × 31,617.33
  4. Step 4: Simplify right side
    57,112.76x = 2,491,858,526.33
  5. Step 5: Solve for x
    x = 2,491,858,526.33/57,112.76
  6. Step 6: Final answer
    x = 43,630.51

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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.