Home / 90,566.22-135,982.62-50,663.40

Finding the Fourth Proportional to 90,566.22, 135,982.62 and 50,663.40

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Solution

The fourth proportional to 90,566.22, 135,982.62 and 50,663.40 is: 76,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,566.22 : 135,982.62 = 50,663.40 : x
  2. Step 2: Convert to fraction form
    90,566.22/135,982.62 = 50,663.40/x
  3. Step 3: Cross multiply
    90,566.22x = 135,982.62 × 50,663.40
  4. Step 4: Simplify right side
    90,566.22x = 6,889,341,870.11
  5. Step 5: Solve for x
    x = 6,889,341,870.11/90,566.22
  6. Step 6: Final answer
    x = 76,069.66

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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.