Home / 68,678.42-94,790.86-40,400.24

Finding the Fourth Proportional to 68,678.42, 94,790.86 and 40,400.24

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Solution

The fourth proportional to 68,678.42, 94,790.86 and 40,400.24 is: 55,760.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,678.42 : 94,790.86 = 40,400.24 : x
  2. Step 2: Convert to fraction form
    68,678.42/94,790.86 = 40,400.24/x
  3. Step 3: Cross multiply
    68,678.42x = 94,790.86 × 40,400.24
  4. Step 4: Simplify right side
    68,678.42x = 3,829,572,918.85
  5. Step 5: Solve for x
    x = 3,829,572,918.85/68,678.42
  6. Step 6: Final answer
    x = 55,760.94

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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.