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Finding the Fourth Proportional to 98,850.38, 136,412.25 and 56,409.62

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Solution

The fourth proportional to 98,850.38, 136,412.25 and 56,409.62 is: 77,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,850.38 : 136,412.25 = 56,409.62 : x
  2. Step 2: Convert to fraction form
    98,850.38/136,412.25 = 56,409.62/x
  3. Step 3: Cross multiply
    98,850.38x = 136,412.25 × 56,409.62
  4. Step 4: Simplify right side
    98,850.38x = 7,694,963,185.85
  5. Step 5: Solve for x
    x = 7,694,963,185.85/98,850.38
  6. Step 6: Final answer
    x = 77,844.55

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1.5x scale

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.