Home / 90,545.39-135,820.65-23,985.53

Finding the Fourth Proportional to 90,545.39, 135,820.65 and 23,985.53

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Solution

The fourth proportional to 90,545.39, 135,820.65 and 23,985.53 is: 35,978.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,545.39 : 135,820.65 = 23,985.53 : x
  2. Step 2: Convert to fraction form
    90,545.39/135,820.65 = 23,985.53/x
  3. Step 3: Cross multiply
    90,545.39x = 135,820.65 × 23,985.53
  4. Step 4: Simplify right side
    90,545.39x = 3,257,729,596.09
  5. Step 5: Solve for x
    x = 3,257,729,596.09/90,545.39
  6. Step 6: Final answer
    x = 35,978.97

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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.