Home / 55,087.12-76,017.21-31,213.27

Finding the Fourth Proportional to 55,087.12, 76,017.21 and 31,213.27

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Solution

The fourth proportional to 55,087.12, 76,017.21 and 31,213.27 is: 43,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.12 : 76,017.21 = 31,213.27 : x
  2. Step 2: Convert to fraction form
    55,087.12/76,017.21 = 31,213.27/x
  3. Step 3: Cross multiply
    55,087.12x = 76,017.21 × 31,213.27
  4. Step 4: Simplify right side
    55,087.12x = 2,372,745,700.38
  5. Step 5: Solve for x
    x = 2,372,745,700.38/55,087.12
  6. Step 6: Final answer
    x = 43,072.60

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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.