Home / 68,801.49-94,946.21-40,140.86

Finding the Fourth Proportional to 68,801.49, 94,946.21 and 40,140.86

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Solution

The fourth proportional to 68,801.49, 94,946.21 and 40,140.86 is: 55,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,801.49 : 94,946.21 = 40,140.86 : x
  2. Step 2: Convert to fraction form
    68,801.49/94,946.21 = 40,140.86/x
  3. Step 3: Cross multiply
    68,801.49x = 94,946.21 × 40,140.86
  4. Step 4: Simplify right side
    68,801.49x = 3,811,221,847.71
  5. Step 5: Solve for x
    x = 3,811,221,847.71/68,801.49
  6. Step 6: Final answer
    x = 55,394.47

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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.