Home / 80,956.51-121,405.61-34,213.03

Finding the Fourth Proportional to 80,956.51, 121,405.61 and 34,213.03

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Solution

The fourth proportional to 80,956.51, 121,405.61 and 34,213.03 is: 51,307.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,956.51 : 121,405.61 = 34,213.03 : x
  2. Step 2: Convert to fraction form
    80,956.51/121,405.61 = 34,213.03/x
  3. Step 3: Cross multiply
    80,956.51x = 121,405.61 × 34,213.03
  4. Step 4: Simplify right side
    80,956.51x = 4,153,654,145.80
  5. Step 5: Solve for x
    x = 4,153,654,145.80/80,956.51
  6. Step 6: Final answer
    x = 51,307.23

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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.