Home / 51,960.72-77,919.60-19,934.88

Finding the Fourth Proportional to 51,960.72, 77,919.60 and 19,934.88

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Solution

The fourth proportional to 51,960.72, 77,919.60 and 19,934.88 is: 29,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,960.72 : 77,919.60 = 19,934.88 : x
  2. Step 2: Convert to fraction form
    51,960.72/77,919.60 = 19,934.88/x
  3. Step 3: Cross multiply
    51,960.72x = 77,919.60 × 19,934.88
  4. Step 4: Simplify right side
    51,960.72x = 1,553,317,875.65
  5. Step 5: Solve for x
    x = 1,553,317,875.65/51,960.72
  6. Step 6: Final answer
    x = 29,894.08

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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.