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Finding the Fourth Proportional to 55,335.30, 82,893.60 and 30,330.60

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Solution

The fourth proportional to 55,335.30, 82,893.60 and 30,330.60 is: 45,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,335.30 : 82,893.60 = 30,330.60 : x
  2. Step 2: Convert to fraction form
    55,335.30/82,893.60 = 30,330.60/x
  3. Step 3: Cross multiply
    55,335.30x = 82,893.60 × 30,330.60
  4. Step 4: Simplify right side
    55,335.30x = 2,514,212,624.16
  5. Step 5: Solve for x
    x = 2,514,212,624.16/55,335.30
  6. Step 6: Final answer
    x = 45,435.96

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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.