Home / 68,386.16-94,375.32-40,090.16

Finding the Fourth Proportional to 68,386.16, 94,375.32 and 40,090.16

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Solution

The fourth proportional to 68,386.16, 94,375.32 and 40,090.16 is: 55,325.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,386.16 : 94,375.32 = 40,090.16 : x
  2. Step 2: Convert to fraction form
    68,386.16/94,375.32 = 40,090.16/x
  3. Step 3: Cross multiply
    68,386.16x = 94,375.32 × 40,090.16
  4. Step 4: Simplify right side
    68,386.16x = 3,783,521,678.85
  5. Step 5: Solve for x
    x = 3,783,521,678.85/68,386.16
  6. Step 6: Final answer
    x = 55,325.84

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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.