Home / 54,878.12-75,731.78-29,727.40

Finding the Fourth Proportional to 54,878.12, 75,731.78 and 29,727.40

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Solution

The fourth proportional to 54,878.12, 75,731.78 and 29,727.40 is: 41,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,878.12 : 75,731.78 = 29,727.40 : x
  2. Step 2: Convert to fraction form
    54,878.12/75,731.78 = 29,727.40/x
  3. Step 3: Cross multiply
    54,878.12x = 75,731.78 × 29,727.40
  4. Step 4: Simplify right side
    54,878.12x = 2,251,308,916.77
  5. Step 5: Solve for x
    x = 2,251,308,916.77/54,878.12
  6. Step 6: Final answer
    x = 41,023.80

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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.