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Finding the Fourth Proportional to 80,881.53, 111,557.10 and 53,608.29

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Solution

The fourth proportional to 80,881.53, 111,557.10 and 53,608.29 is: 73,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881.53 : 111,557.10 = 53,608.29 : x
  2. Step 2: Convert to fraction form
    80,881.53/111,557.10 = 53,608.29/x
  3. Step 3: Cross multiply
    80,881.53x = 111,557.10 × 53,608.29
  4. Step 4: Simplify right side
    80,881.53x = 5,980,385,368.36
  5. Step 5: Solve for x
    x = 5,980,385,368.36/80,881.53
  6. Step 6: Final answer
    x = 73,940.06

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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.