Home / 40,239.72-60,387.30-18,077.94

Finding the Fourth Proportional to 40,239.72, 60,387.30 and 18,077.94

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Solution

The fourth proportional to 40,239.72, 60,387.30 and 18,077.94 is: 27,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,239.72 : 60,387.30 = 18,077.94 : x
  2. Step 2: Convert to fraction form
    40,239.72/60,387.30 = 18,077.94/x
  3. Step 3: Cross multiply
    40,239.72x = 60,387.30 × 18,077.94
  4. Step 4: Simplify right side
    40,239.72x = 1,091,677,986.16
  5. Step 5: Solve for x
    x = 1,091,677,986.16/40,239.72
  6. Step 6: Final answer
    x = 27,129.36

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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.