Home / 56,299.36-77,691.91-30,805.62

Finding the Fourth Proportional to 56,299.36, 77,691.91 and 30,805.62

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Solution

The fourth proportional to 56,299.36, 77,691.91 and 30,805.62 is: 42,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,299.36 : 77,691.91 = 30,805.62 : x
  2. Step 2: Convert to fraction form
    56,299.36/77,691.91 = 30,805.62/x
  3. Step 3: Cross multiply
    56,299.36x = 77,691.91 × 30,805.62
  4. Step 4: Simplify right side
    56,299.36x = 2,393,347,068.07
  5. Step 5: Solve for x
    x = 2,393,347,068.07/56,299.36
  6. Step 6: Final answer
    x = 42,511.09

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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.