Home / 90,211.50-135,317.81-23,651.03

Finding the Fourth Proportional to 90,211.50, 135,317.81 and 23,651.03

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Solution

The fourth proportional to 90,211.50, 135,317.81 and 23,651.03 is: 35,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,211.50 : 135,317.81 = 23,651.03 : x
  2. Step 2: Convert to fraction form
    90,211.50/135,317.81 = 23,651.03/x
  3. Step 3: Cross multiply
    90,211.50x = 135,317.81 × 23,651.03
  4. Step 4: Simplify right side
    90,211.50x = 3,200,405,981.27
  5. Step 5: Solve for x
    x = 3,200,405,981.27/90,211.50
  6. Step 6: Final answer
    x = 35,476.70

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1.5x scale

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.