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Finding the Fourth Proportional to 80,175.81, 110,643.66 and 49,973.34

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Solution

The fourth proportional to 80,175.81, 110,643.66 and 49,973.34 is: 68,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,175.81 : 110,643.66 = 49,973.34 : x
  2. Step 2: Convert to fraction form
    80,175.81/110,643.66 = 49,973.34/x
  3. Step 3: Cross multiply
    80,175.81x = 110,643.66 × 49,973.34
  4. Step 4: Simplify right side
    80,175.81x = 5,529,233,240.02
  5. Step 5: Solve for x
    x = 5,529,233,240.02/80,175.81
  6. Step 6: Final answer
    x = 68,963.86

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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.