Home / 55,025.20-75,936.62-30,827.21

Finding the Fourth Proportional to 55,025.20, 75,936.62 and 30,827.21

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Solution

The fourth proportional to 55,025.20, 75,936.62 and 30,827.21 is: 42,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,025.20 : 75,936.62 = 30,827.21 : x
  2. Step 2: Convert to fraction form
    55,025.20/75,936.62 = 30,827.21/x
  3. Step 3: Cross multiply
    55,025.20x = 75,936.62 × 30,827.21
  4. Step 4: Simplify right side
    55,025.20x = 2,340,913,977.29
  5. Step 5: Solve for x
    x = 2,340,913,977.29/55,025.20
  6. Step 6: Final answer
    x = 42,542.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.