Home / 54,931.16-75,805.50-29,780.72

Finding the Fourth Proportional to 54,931.16, 75,805.50 and 29,780.72

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Solution

The fourth proportional to 54,931.16, 75,805.50 and 29,780.72 is: 41,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,931.16 : 75,805.50 = 29,780.72 : x
  2. Step 2: Convert to fraction form
    54,931.16/75,805.50 = 29,780.72/x
  3. Step 3: Cross multiply
    54,931.16x = 75,805.50 × 29,780.72
  4. Step 4: Simplify right side
    54,931.16x = 2,257,542,369.96
  5. Step 5: Solve for x
    x = 2,257,542,369.96/54,931.16
  6. Step 6: Final answer
    x = 41,097.66

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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.