Home / 68,330.12-94,291.50-39,647.56

Finding the Fourth Proportional to 68,330.12, 94,291.50 and 39,647.56

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Solution

The fourth proportional to 68,330.12, 94,291.50 and 39,647.56 is: 54,711.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,330.12 : 94,291.50 = 39,647.56 : x
  2. Step 2: Convert to fraction form
    68,330.12/94,291.50 = 39,647.56/x
  3. Step 3: Cross multiply
    68,330.12x = 94,291.50 × 39,647.56
  4. Step 4: Simplify right side
    68,330.12x = 3,738,427,903.74
  5. Step 5: Solve for x
    x = 3,738,427,903.74/68,330.12
  6. Step 6: Final answer
    x = 54,711.27

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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.