Home / 40,820.25-61,240.65-19,770.39

Finding the Fourth Proportional to 40,820.25, 61,240.65 and 19,770.39

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Solution

The fourth proportional to 40,820.25, 61,240.65 and 19,770.39 is: 29,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,820.25 : 61,240.65 = 19,770.39 : x
  2. Step 2: Convert to fraction form
    40,820.25/61,240.65 = 19,770.39/x
  3. Step 3: Cross multiply
    40,820.25x = 61,240.65 × 19,770.39
  4. Step 4: Simplify right side
    40,820.25x = 1,210,751,534.35
  5. Step 5: Solve for x
    x = 1,210,751,534.35/40,820.25
  6. Step 6: Final answer
    x = 29,660.56

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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.