Home / 57,261.12-79,020.21-31,771.36

Finding the Fourth Proportional to 57,261.12, 79,020.21 and 31,771.36

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Solution

The fourth proportional to 57,261.12, 79,020.21 and 31,771.36 is: 43,844.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,261.12 : 79,020.21 = 31,771.36 : x
  2. Step 2: Convert to fraction form
    57,261.12/79,020.21 = 31,771.36/x
  3. Step 3: Cross multiply
    57,261.12x = 79,020.21 × 31,771.36
  4. Step 4: Simplify right side
    57,261.12x = 2,510,579,539.19
  5. Step 5: Solve for x
    x = 2,510,579,539.19/57,261.12
  6. Step 6: Final answer
    x = 43,844.41

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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.