Home / 51,470.40-77,192.64-20,305.92

Finding the Fourth Proportional to 51,470.40, 77,192.64 and 20,305.92

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Solution

The fourth proportional to 51,470.40, 77,192.64 and 20,305.92 is: 30,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,470.40 : 77,192.64 = 20,305.92 : x
  2. Step 2: Convert to fraction form
    51,470.40/77,192.64 = 20,305.92/x
  3. Step 3: Cross multiply
    51,470.40x = 77,192.64 × 20,305.92
  4. Step 4: Simplify right side
    51,470.40x = 1,567,467,572.43
  5. Step 5: Solve for x
    x = 1,567,467,572.43/51,470.40
  6. Step 6: Final answer
    x = 30,453.77

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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.