Home / 81,272.10-112,161.42-45,473.64

Finding the Fourth Proportional to 81,272.10, 112,161.42 and 45,473.64

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Solution

The fourth proportional to 81,272.10, 112,161.42 and 45,473.64 is: 62,756.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,272.10 : 112,161.42 = 45,473.64 : x
  2. Step 2: Convert to fraction form
    81,272.10/112,161.42 = 45,473.64/x
  3. Step 3: Cross multiply
    81,272.10x = 112,161.42 × 45,473.64
  4. Step 4: Simplify right side
    81,272.10x = 5,100,388,034.97
  5. Step 5: Solve for x
    x = 5,100,388,034.97/81,272.10
  6. Step 6: Final answer
    x = 62,756.94

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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.