Home / 90,116.16-135,296.80-50,700.96

Finding the Fourth Proportional to 90,116.16, 135,296.80 and 50,700.96

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Solution

The fourth proportional to 90,116.16, 135,296.80 and 50,700.96 is: 76,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,116.16 : 135,296.80 = 50,700.96 : x
  2. Step 2: Convert to fraction form
    90,116.16/135,296.80 = 50,700.96/x
  3. Step 3: Cross multiply
    90,116.16x = 135,296.80 × 50,700.96
  4. Step 4: Simplify right side
    90,116.16x = 6,859,677,644.93
  5. Step 5: Solve for x
    x = 6,859,677,644.93/90,116.16
  6. Step 6: Final answer
    x = 76,120.39

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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.