Home / 55,165.60-82,740.20-20,097.08

Finding the Fourth Proportional to 55,165.60, 82,740.20 and 20,097.08

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Solution

The fourth proportional to 55,165.60, 82,740.20 and 20,097.08 is: 30,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,165.60 : 82,740.20 = 20,097.08 : x
  2. Step 2: Convert to fraction form
    55,165.60/82,740.20 = 20,097.08/x
  3. Step 3: Cross multiply
    55,165.60x = 82,740.20 × 20,097.08
  4. Step 4: Simplify right side
    55,165.60x = 1,662,836,418.62
  5. Step 5: Solve for x
    x = 1,662,836,418.62/55,165.60
  6. Step 6: Final answer
    x = 30,142.63

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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.