Home / 90,763.52-136,052.40-31,550.60

Finding the Fourth Proportional to 90,763.52, 136,052.40 and 31,550.60

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Solution

The fourth proportional to 90,763.52, 136,052.40 and 31,550.60 is: 47,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.52 : 136,052.40 = 31,550.60 : x
  2. Step 2: Convert to fraction form
    90,763.52/136,052.40 = 31,550.60/x
  3. Step 3: Cross multiply
    90,763.52x = 136,052.40 × 31,550.60
  4. Step 4: Simplify right side
    90,763.52x = 4,292,534,851.44
  5. Step 5: Solve for x
    x = 4,292,534,851.44/90,763.52
  6. Step 6: Final answer
    x = 47,293.61

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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.