Home / 81,512.60-122,269.30-37,108.28

Finding the Fourth Proportional to 81,512.60, 122,269.30 and 37,108.28

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Solution

The fourth proportional to 81,512.60, 122,269.30 and 37,108.28 is: 55,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.60 : 122,269.30 = 37,108.28 : x
  2. Step 2: Convert to fraction form
    81,512.60/122,269.30 = 37,108.28/x
  3. Step 3: Cross multiply
    81,512.60x = 122,269.30 × 37,108.28
  4. Step 4: Simplify right side
    81,512.60x = 4,537,203,632.71
  5. Step 5: Solve for x
    x = 4,537,203,632.71/81,512.60
  6. Step 6: Final answer
    x = 55,662.61

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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.