Home / 81,969.66-113,109.75-60,471.09

Finding the Fourth Proportional to 81,969.66, 113,109.75 and 60,471.09

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Solution

The fourth proportional to 81,969.66, 113,109.75 and 60,471.09 is: 83,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,969.66 : 113,109.75 = 60,471.09 : x
  2. Step 2: Convert to fraction form
    81,969.66/113,109.75 = 60,471.09/x
  3. Step 3: Cross multiply
    81,969.66x = 113,109.75 × 60,471.09
  4. Step 4: Simplify right side
    81,969.66x = 6,839,869,872.13
  5. Step 5: Solve for x
    x = 6,839,869,872.13/81,969.66
  6. Step 6: Final answer
    x = 83,443.92

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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.