Home / 81,375.19-112,295.16-45,075.15

Finding the Fourth Proportional to 81,375.19, 112,295.16 and 45,075.15

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Solution

The fourth proportional to 81,375.19, 112,295.16 and 45,075.15 is: 62,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,375.19 : 112,295.16 = 45,075.15 : x
  2. Step 2: Convert to fraction form
    81,375.19/112,295.16 = 45,075.15/x
  3. Step 3: Cross multiply
    81,375.19x = 112,295.16 × 45,075.15
  4. Step 4: Simplify right side
    81,375.19x = 5,061,721,418.15
  5. Step 5: Solve for x
    x = 5,061,721,418.15/81,375.19
  6. Step 6: Final answer
    x = 62,202.27

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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.