Home / 81,171.38-112,016.18-45,361.38

Finding the Fourth Proportional to 81,171.38, 112,016.18 and 45,361.38

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Solution

The fourth proportional to 81,171.38, 112,016.18 and 45,361.38 is: 62,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,171.38 : 112,016.18 = 45,361.38 : x
  2. Step 2: Convert to fraction form
    81,171.38/112,016.18 = 45,361.38/x
  3. Step 3: Cross multiply
    81,171.38x = 112,016.18 × 45,361.38
  4. Step 4: Simplify right side
    81,171.38x = 5,081,208,280.32
  5. Step 5: Solve for x
    x = 5,081,208,280.32/81,171.38
  6. Step 6: Final answer
    x = 62,598.52

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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.