Home / 55,121.40-82,682.10-28,877.40

Finding the Fourth Proportional to 55,121.40, 82,682.10 and 28,877.40

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Solution

The fourth proportional to 55,121.40, 82,682.10 and 28,877.40 is: 43,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121.40 : 82,682.10 = 28,877.40 : x
  2. Step 2: Convert to fraction form
    55,121.40/82,682.10 = 28,877.40/x
  3. Step 3: Cross multiply
    55,121.40x = 82,682.10 × 28,877.40
  4. Step 4: Simplify right side
    55,121.40x = 2,387,644,074.54
  5. Step 5: Solve for x
    x = 2,387,644,074.54/55,121.40
  6. Step 6: Final answer
    x = 43,316.10

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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.