Home / 90,655.14-135,986.13-34,484.73

Finding the Fourth Proportional to 90,655.14, 135,986.13 and 34,484.73

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Solution

The fourth proportional to 90,655.14, 135,986.13 and 34,484.73 is: 51,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,655.14 : 135,986.13 = 34,484.73 : x
  2. Step 2: Convert to fraction form
    90,655.14/135,986.13 = 34,484.73/x
  3. Step 3: Cross multiply
    90,655.14x = 135,986.13 × 34,484.73
  4. Step 4: Simplify right side
    90,655.14x = 4,689,444,976.79
  5. Step 5: Solve for x
    x = 4,689,444,976.79/90,655.14
  6. Step 6: Final answer
    x = 51,728.40

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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.