Home / 57,380.24-86,089.80-29,312.12

Finding the Fourth Proportional to 57,380.24, 86,089.80 and 29,312.12

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Solution

The fourth proportional to 57,380.24, 86,089.80 and 29,312.12 is: 43,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,380.24 : 86,089.80 = 29,312.12 : x
  2. Step 2: Convert to fraction form
    57,380.24/86,089.80 = 29,312.12/x
  3. Step 3: Cross multiply
    57,380.24x = 86,089.80 × 29,312.12
  4. Step 4: Simplify right side
    57,380.24x = 2,523,474,548.38
  5. Step 5: Solve for x
    x = 2,523,474,548.38/57,380.24
  6. Step 6: Final answer
    x = 43,978.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.