Home / 81,023.60-111,812.54-45,213.83

Finding the Fourth Proportional to 81,023.60, 111,812.54 and 45,213.83

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Solution

The fourth proportional to 81,023.60, 111,812.54 and 45,213.83 is: 62,395.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,023.60 : 111,812.54 = 45,213.83 : x
  2. Step 2: Convert to fraction form
    81,023.60/111,812.54 = 45,213.83/x
  3. Step 3: Cross multiply
    81,023.60x = 111,812.54 × 45,213.83
  4. Step 4: Simplify right side
    81,023.60x = 5,055,473,175.43
  5. Step 5: Solve for x
    x = 5,055,473,175.43/81,023.60
  6. Step 6: Final answer
    x = 62,395.07

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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.