Home / 67,640.52-93,286.64-40,777.14

Finding the Fourth Proportional to 67,640.52, 93,286.64 and 40,777.14

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Solution

The fourth proportional to 67,640.52, 93,286.64 and 40,777.14 is: 56,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.52 : 93,286.64 = 40,777.14 : x
  2. Step 2: Convert to fraction form
    67,640.52/93,286.64 = 40,777.14/x
  3. Step 3: Cross multiply
    67,640.52x = 93,286.64 × 40,777.14
  4. Step 4: Simplify right side
    67,640.52x = 3,803,962,379.41
  5. Step 5: Solve for x
    x = 3,803,962,379.41/67,640.52
  6. Step 6: Final answer
    x = 56,237.92

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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.