Home / 84,577.44-126,868.21-28,418.36

Finding the Fourth Proportional to 84,577.44, 126,868.21 and 28,418.36

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Solution

The fourth proportional to 84,577.44, 126,868.21 and 28,418.36 is: 42,628.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,577.44 : 126,868.21 = 28,418.36 : x
  2. Step 2: Convert to fraction form
    84,577.44/126,868.21 = 28,418.36/x
  3. Step 3: Cross multiply
    84,577.44x = 126,868.21 × 28,418.36
  4. Step 4: Simplify right side
    84,577.44x = 3,605,386,057.25
  5. Step 5: Solve for x
    x = 3,605,386,057.25/84,577.44
  6. Step 6: Final answer
    x = 42,628.22

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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.