Home / 86,214.78-129,353.76-36,307.44

Finding the Fourth Proportional to 86,214.78, 129,353.76 and 36,307.44

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Solution

The fourth proportional to 86,214.78, 129,353.76 and 36,307.44 is: 54,474.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,214.78 : 129,353.76 = 36,307.44 : x
  2. Step 2: Convert to fraction form
    86,214.78/129,353.76 = 36,307.44/x
  3. Step 3: Cross multiply
    86,214.78x = 129,353.76 × 36,307.44
  4. Step 4: Simplify right side
    86,214.78x = 4,696,503,879.97
  5. Step 5: Solve for x
    x = 4,696,503,879.97/86,214.78
  6. Step 6: Final answer
    x = 54,474.46

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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.