Home / 90,659.07-135,988.20-34,486.02

Finding the Fourth Proportional to 90,659.07, 135,988.20 and 34,486.02

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Solution

The fourth proportional to 90,659.07, 135,988.20 and 34,486.02 is: 51,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,659.07 : 135,988.20 = 34,486.02 : x
  2. Step 2: Convert to fraction form
    90,659.07/135,988.20 = 34,486.02/x
  3. Step 3: Cross multiply
    90,659.07x = 135,988.20 × 34,486.02
  4. Step 4: Simplify right side
    90,659.07x = 4,689,691,784.96
  5. Step 5: Solve for x
    x = 4,689,691,784.96/90,659.07
  6. Step 6: Final answer
    x = 51,728.88

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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.