Home / 57,480.72-79,327.53-31,989.21

Finding the Fourth Proportional to 57,480.72, 79,327.53 and 31,989.21

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Solution

The fourth proportional to 57,480.72, 79,327.53 and 31,989.21 is: 44,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.72 : 79,327.53 = 31,989.21 : x
  2. Step 2: Convert to fraction form
    57,480.72/79,327.53 = 31,989.21/x
  3. Step 3: Cross multiply
    57,480.72x = 79,327.53 × 31,989.21
  4. Step 4: Simplify right side
    57,480.72x = 2,537,625,015.95
  5. Step 5: Solve for x
    x = 2,537,625,015.95/57,480.72
  6. Step 6: Final answer
    x = 44,147.41

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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.