Home / 90,501.26-135,530.34-63,781.58

Finding the Fourth Proportional to 90,501.26, 135,530.34 and 63,781.58

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Solution

The fourth proportional to 90,501.26, 135,530.34 and 63,781.58 is: 95,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,501.26 : 135,530.34 = 63,781.58 : x
  2. Step 2: Convert to fraction form
    90,501.26/135,530.34 = 63,781.58/x
  3. Step 3: Cross multiply
    90,501.26x = 135,530.34 × 63,781.58
  4. Step 4: Simplify right side
    90,501.26x = 8,644,338,545.49
  5. Step 5: Solve for x
    x = 8,644,338,545.49/90,501.26
  6. Step 6: Final answer
    x = 95,516.23

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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.