Home / 81,171.05-112,015.73-45,361.05

Finding the Fourth Proportional to 81,171.05, 112,015.73 and 45,361.05

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Solution

The fourth proportional to 81,171.05, 112,015.73 and 45,361.05 is: 62,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,171.05 : 112,015.73 = 45,361.05 : x
  2. Step 2: Convert to fraction form
    81,171.05/112,015.73 = 45,361.05/x
  3. Step 3: Cross multiply
    81,171.05x = 112,015.73 × 45,361.05
  4. Step 4: Simplify right side
    81,171.05x = 5,081,150,902.51
  5. Step 5: Solve for x
    x = 5,081,150,902.51/81,171.05
  6. Step 6: Final answer
    x = 62,598.07

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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.