Home / 57,415.36-79,233.11-31,920.91

Finding the Fourth Proportional to 57,415.36, 79,233.11 and 31,920.91

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Solution

The fourth proportional to 57,415.36, 79,233.11 and 31,920.91 is: 44,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,415.36 : 79,233.11 = 31,920.91 : x
  2. Step 2: Convert to fraction form
    57,415.36/79,233.11 = 31,920.91/x
  3. Step 3: Cross multiply
    57,415.36x = 79,233.11 × 31,920.91
  4. Step 4: Simplify right side
    57,415.36x = 2,529,193,047.97
  5. Step 5: Solve for x
    x = 2,529,193,047.97/57,415.36
  6. Step 6: Final answer
    x = 44,050.81

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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.