Home / 79,782.07-110,127.45-71,269.42

Finding the Fourth Proportional to 79,782.07, 110,127.45 and 71,269.42

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Solution

The fourth proportional to 79,782.07, 110,127.45 and 71,269.42 is: 98,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,782.07 : 110,127.45 = 71,269.42 : x
  2. Step 2: Convert to fraction form
    79,782.07/110,127.45 = 71,269.42/x
  3. Step 3: Cross multiply
    79,782.07x = 110,127.45 × 71,269.42
  4. Step 4: Simplify right side
    79,782.07x = 7,848,719,487.58
  5. Step 5: Solve for x
    x = 7,848,719,487.58/79,782.07
  6. Step 6: Final answer
    x = 98,376.98

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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.