Home / 57,261.18-79,021.08-31,768.02

Finding the Fourth Proportional to 57,261.18, 79,021.08 and 31,768.02

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Solution

The fourth proportional to 57,261.18, 79,021.08 and 31,768.02 is: 43,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,261.18 : 79,021.08 = 31,768.02 : x
  2. Step 2: Convert to fraction form
    57,261.18/79,021.08 = 31,768.02/x
  3. Step 3: Cross multiply
    57,261.18x = 79,021.08 × 31,768.02
  4. Step 4: Simplify right side
    57,261.18x = 2,510,343,249.86
  5. Step 5: Solve for x
    x = 2,510,343,249.86/57,261.18
  6. Step 6: Final answer
    x = 43,840.23

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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.