Home / 90,223.52-135,344.38-31,051.40

Finding the Fourth Proportional to 90,223.52, 135,344.38 and 31,051.40

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Solution

The fourth proportional to 90,223.52, 135,344.38 and 31,051.40 is: 46,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,223.52 : 135,344.38 = 31,051.40 : x
  2. Step 2: Convert to fraction form
    90,223.52/135,344.38 = 31,051.40/x
  3. Step 3: Cross multiply
    90,223.52x = 135,344.38 × 31,051.40
  4. Step 4: Simplify right side
    90,223.52x = 4,202,632,481.13
  5. Step 5: Solve for x
    x = 4,202,632,481.13/90,223.52
  6. Step 6: Final answer
    x = 46,580.23

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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.