Home / 80,837.08-121,272.42-34,090.36

Finding the Fourth Proportional to 80,837.08, 121,272.42 and 34,090.36

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Solution

The fourth proportional to 80,837.08, 121,272.42 and 34,090.36 is: 51,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,837.08 : 121,272.42 = 34,090.36 : x
  2. Step 2: Convert to fraction form
    80,837.08/121,272.42 = 34,090.36/x
  3. Step 3: Cross multiply
    80,837.08x = 121,272.42 × 34,090.36
  4. Step 4: Simplify right side
    80,837.08x = 4,134,220,455.87
  5. Step 5: Solve for x
    x = 4,134,220,455.87/80,837.08
  6. Step 6: Final answer
    x = 51,142.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.