Home / 51,392.04-77,092.92-20,220

Finding the Fourth Proportional to 51,392.04, 77,092.92 and 20,220

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Solution

The fourth proportional to 51,392.04, 77,092.92 and 20,220 is: 30,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,392.04 : 77,092.92 = 20,220 : x
  2. Step 2: Convert to fraction form
    51,392.04/77,092.92 = 20,220/x
  3. Step 3: Cross multiply
    51,392.04x = 77,092.92 × 20,220
  4. Step 4: Simplify right side
    51,392.04x = 1,558,818,842.40
  5. Step 5: Solve for x
    x = 1,558,818,842.40/51,392.04
  6. Step 6: Final answer
    x = 30,331.91

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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.