Home / 81,972.74-113,120.16-46,161.98

Finding the Fourth Proportional to 81,972.74, 113,120.16 and 46,161.98

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Solution

The fourth proportional to 81,972.74, 113,120.16 and 46,161.98 is: 63,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,972.74 : 113,120.16 = 46,161.98 : x
  2. Step 2: Convert to fraction form
    81,972.74/113,120.16 = 46,161.98/x
  3. Step 3: Cross multiply
    81,972.74x = 113,120.16 × 46,161.98
  4. Step 4: Simplify right side
    81,972.74x = 5,221,849,997.92
  5. Step 5: Solve for x
    x = 5,221,849,997.92/81,972.74
  6. Step 6: Final answer
    x = 63,702.28

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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.