Home / 78,988.24-109,006.42-43,177.48

Finding the Fourth Proportional to 78,988.24, 109,006.42 and 43,177.48

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Solution

The fourth proportional to 78,988.24, 109,006.42 and 43,177.48 is: 59,586.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,988.24 : 109,006.42 = 43,177.48 : x
  2. Step 2: Convert to fraction form
    78,988.24/109,006.42 = 43,177.48/x
  3. Step 3: Cross multiply
    78,988.24x = 109,006.42 × 43,177.48
  4. Step 4: Simplify right side
    78,988.24x = 4,706,622,519.42
  5. Step 5: Solve for x
    x = 4,706,622,519.42/78,988.24
  6. Step 6: Final answer
    x = 59,586.37

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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.