Home / 56,355.12-77,764.68-33,689.61

Finding the Fourth Proportional to 56,355.12, 77,764.68 and 33,689.61

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Solution

The fourth proportional to 56,355.12, 77,764.68 and 33,689.61 is: 46,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,355.12 : 77,764.68 = 33,689.61 : x
  2. Step 2: Convert to fraction form
    56,355.12/77,764.68 = 33,689.61/x
  3. Step 3: Cross multiply
    56,355.12x = 77,764.68 × 33,689.61
  4. Step 4: Simplify right side
    56,355.12x = 2,619,861,740.97
  5. Step 5: Solve for x
    x = 2,619,861,740.97/56,355.12
  6. Step 6: Final answer
    x = 46,488.44

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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.