Home / 86,211.78-129,336.28-26,244.94

Finding the Fourth Proportional to 86,211.78, 129,336.28 and 26,244.94

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Solution

The fourth proportional to 86,211.78, 129,336.28 and 26,244.94 is: 39,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211.78 : 129,336.28 = 26,244.94 : x
  2. Step 2: Convert to fraction form
    86,211.78/129,336.28 = 26,244.94/x
  3. Step 3: Cross multiply
    86,211.78x = 129,336.28 × 26,244.94
  4. Step 4: Simplify right side
    86,211.78x = 3,394,422,908.42
  5. Step 5: Solve for x
    x = 3,394,422,908.42/86,211.78
  6. Step 6: Final answer
    x = 39,373.08

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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.