Home / 81,026.57-111,816.75-45,216.57

Finding the Fourth Proportional to 81,026.57, 111,816.75 and 45,216.57

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Solution

The fourth proportional to 81,026.57, 111,816.75 and 45,216.57 is: 62,398.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,026.57 : 111,816.75 = 45,216.57 : x
  2. Step 2: Convert to fraction form
    81,026.57/111,816.75 = 45,216.57/x
  3. Step 3: Cross multiply
    81,026.57x = 111,816.75 × 45,216.57
  4. Step 4: Simplify right side
    81,026.57x = 5,055,969,903.55
  5. Step 5: Solve for x
    x = 5,055,969,903.55/81,026.57
  6. Step 6: Final answer
    x = 62,398.91

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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.