Home / 55,161.68-82,740.64-30,213.48

Finding the Fourth Proportional to 55,161.68, 82,740.64 and 30,213.48

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Solution

The fourth proportional to 55,161.68, 82,740.64 and 30,213.48 is: 45,319.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161.68 : 82,740.64 = 30,213.48 : x
  2. Step 2: Convert to fraction form
    55,161.68/82,740.64 = 30,213.48/x
  3. Step 3: Cross multiply
    55,161.68x = 82,740.64 × 30,213.48
  4. Step 4: Simplify right side
    55,161.68x = 2,499,882,671.83
  5. Step 5: Solve for x
    x = 2,499,882,671.83/55,161.68
  6. Step 6: Final answer
    x = 45,319.19

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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.