Home / 90,647.61-135,971.46-34,474.75

Finding the Fourth Proportional to 90,647.61, 135,971.46 and 34,474.75

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Solution

The fourth proportional to 90,647.61, 135,971.46 and 34,474.75 is: 51,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647.61 : 135,971.46 = 34,474.75 : x
  2. Step 2: Convert to fraction form
    90,647.61/135,971.46 = 34,474.75/x
  3. Step 3: Cross multiply
    90,647.61x = 135,971.46 × 34,474.75
  4. Step 4: Simplify right side
    90,647.61x = 4,687,581,750.71
  5. Step 5: Solve for x
    x = 4,687,581,750.71/90,647.61
  6. Step 6: Final answer
    x = 51,712.14

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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.