Home / 81,792.05-112,872.35-45,982.22

Finding the Fourth Proportional to 81,792.05, 112,872.35 and 45,982.22

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Solution

The fourth proportional to 81,792.05, 112,872.35 and 45,982.22 is: 63,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,792.05 : 112,872.35 = 45,982.22 : x
  2. Step 2: Convert to fraction form
    81,792.05/112,872.35 = 45,982.22/x
  3. Step 3: Cross multiply
    81,792.05x = 112,872.35 × 45,982.22
  4. Step 4: Simplify right side
    81,792.05x = 5,190,120,780.21
  5. Step 5: Solve for x
    x = 5,190,120,780.21/81,792.05
  6. Step 6: Final answer
    x = 63,455.08

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1.5x scale

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.