Home / 68,078.88-93,923.09-42,225.47

Finding the Fourth Proportional to 68,078.88, 93,923.09 and 42,225.47

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Solution

The fourth proportional to 68,078.88, 93,923.09 and 42,225.47 is: 58,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,078.88 : 93,923.09 = 42,225.47 : x
  2. Step 2: Convert to fraction form
    68,078.88/93,923.09 = 42,225.47/x
  3. Step 3: Cross multiply
    68,078.88x = 93,923.09 × 42,225.47
  4. Step 4: Simplify right side
    68,078.88x = 3,965,946,801.13
  5. Step 5: Solve for x
    x = 3,965,946,801.13/68,078.88
  6. Step 6: Final answer
    x = 58,255.17

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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.