Home / 51,215.70-76,817.79-20,042.58

Finding the Fourth Proportional to 51,215.70, 76,817.79 and 20,042.58

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Solution

The fourth proportional to 51,215.70, 76,817.79 and 20,042.58 is: 30,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,215.70 : 76,817.79 = 20,042.58 : x
  2. Step 2: Convert to fraction form
    51,215.70/76,817.79 = 20,042.58/x
  3. Step 3: Cross multiply
    51,215.70x = 76,817.79 × 20,042.58
  4. Step 4: Simplify right side
    51,215.70x = 1,539,626,701.50
  5. Step 5: Solve for x
    x = 1,539,626,701.50/51,215.70
  6. Step 6: Final answer
    x = 30,061.62

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1.5x scale

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.