Home / 68,321.04-94,292.40-40,038

Finding the Fourth Proportional to 68,321.04, 94,292.40 and 40,038

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Solution

The fourth proportional to 68,321.04, 94,292.40 and 40,038 is: 55,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,321.04 : 94,292.40 = 40,038 : x
  2. Step 2: Convert to fraction form
    68,321.04/94,292.40 = 40,038/x
  3. Step 3: Cross multiply
    68,321.04x = 94,292.40 × 40,038
  4. Step 4: Simplify right side
    68,321.04x = 3,775,279,111.20
  5. Step 5: Solve for x
    x = 3,775,279,111.20/68,321.04
  6. Step 6: Final answer
    x = 55,257.93

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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.