Home / 54,210.86-81,168.66-42,161.18

Finding the Fourth Proportional to 54,210.86, 81,168.66 and 42,161.18

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Solution

The fourth proportional to 54,210.86, 81,168.66 and 42,161.18 is: 63,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,210.86 : 81,168.66 = 42,161.18 : x
  2. Step 2: Convert to fraction form
    54,210.86/81,168.66 = 42,161.18/x
  3. Step 3: Cross multiply
    54,210.86x = 81,168.66 × 42,161.18
  4. Step 4: Simplify right side
    54,210.86x = 3,422,166,078.78
  5. Step 5: Solve for x
    x = 3,422,166,078.78/54,210.86
  6. Step 6: Final answer
    x = 63,126.95

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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.