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Finding the Fourth Proportional to 55,230.60, 82,845.90 and 30,347.40

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Solution

The fourth proportional to 55,230.60, 82,845.90 and 30,347.40 is: 45,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.60 : 82,845.90 = 30,347.40 : x
  2. Step 2: Convert to fraction form
    55,230.60/82,845.90 = 30,347.40/x
  3. Step 3: Cross multiply
    55,230.60x = 82,845.90 × 30,347.40
  4. Step 4: Simplify right side
    55,230.60x = 2,514,157,665.66
  5. Step 5: Solve for x
    x = 2,514,157,665.66/55,230.60
  6. Step 6: Final answer
    x = 45,521.10

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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.