Home / 51,770.40-71,449.04-28,802.50

Finding the Fourth Proportional to 51,770.40, 71,449.04 and 28,802.50

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Solution

The fourth proportional to 51,770.40, 71,449.04 and 28,802.50 is: 39,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,770.40 : 71,449.04 = 28,802.50 : x
  2. Step 2: Convert to fraction form
    51,770.40/71,449.04 = 28,802.50/x
  3. Step 3: Cross multiply
    51,770.40x = 71,449.04 × 28,802.50
  4. Step 4: Simplify right side
    51,770.40x = 2,057,910,705.97
  5. Step 5: Solve for x
    x = 2,057,910,705.97/51,770.40
  6. Step 6: Final answer
    x = 39,750.72

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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.