Home / 90,501.51-135,530.71-63,781.83

Finding the Fourth Proportional to 90,501.51, 135,530.71 and 63,781.83

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Solution

The fourth proportional to 90,501.51, 135,530.71 and 63,781.83 is: 95,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,501.51 : 135,530.71 = 63,781.83 : x
  2. Step 2: Convert to fraction form
    90,501.51/135,530.71 = 63,781.83/x
  3. Step 3: Cross multiply
    90,501.51x = 135,530.71 × 63,781.83
  4. Step 4: Simplify right side
    90,501.51x = 8,644,396,705.00
  5. Step 5: Solve for x
    x = 8,644,396,705.00/90,501.51
  6. Step 6: Final answer
    x = 95,516.60

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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.