Home / 54,881.20-75,736-29,730.72

Finding the Fourth Proportional to 54,881.20, 75,736 and 29,730.72

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Solution

The fourth proportional to 54,881.20, 75,736 and 29,730.72 is: 41,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,881.20 : 75,736 = 29,730.72 : x
  2. Step 2: Convert to fraction form
    54,881.20/75,736 = 29,730.72/x
  3. Step 3: Cross multiply
    54,881.20x = 75,736 × 29,730.72
  4. Step 4: Simplify right side
    54,881.20x = 2,251,685,809.92
  5. Step 5: Solve for x
    x = 2,251,685,809.92/54,881.20
  6. Step 6: Final answer
    x = 41,028.36

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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.