Home / 68,841.90-103,323.60-40,726.80

Finding the Fourth Proportional to 68,841.90, 103,323.60 and 40,726.80

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Solution

The fourth proportional to 68,841.90, 103,323.60 and 40,726.80 is: 61,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,841.90 : 103,323.60 = 40,726.80 : x
  2. Step 2: Convert to fraction form
    68,841.90/103,323.60 = 40,726.80/x
  3. Step 3: Cross multiply
    68,841.90x = 103,323.60 × 40,726.80
  4. Step 4: Simplify right side
    68,841.90x = 4,208,039,592.48
  5. Step 5: Solve for x
    x = 4,208,039,592.48/68,841.90
  6. Step 6: Final answer
    x = 61,126.14

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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.