Home / 57,261.53-79,021.10-31,768.40

Finding the Fourth Proportional to 57,261.53, 79,021.10 and 31,768.40

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Solution

The fourth proportional to 57,261.53, 79,021.10 and 31,768.40 is: 43,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,261.53 : 79,021.10 = 31,768.40 : x
  2. Step 2: Convert to fraction form
    57,261.53/79,021.10 = 31,768.40/x
  3. Step 3: Cross multiply
    57,261.53x = 79,021.10 × 31,768.40
  4. Step 4: Simplify right side
    57,261.53x = 2,510,374,190.21
  5. Step 5: Solve for x
    x = 2,510,374,190.21/57,261.53
  6. Step 6: Final answer
    x = 43,840.50

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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.