Home / 54,099.32-74,651.58-31,128.56

Finding the Fourth Proportional to 54,099.32, 74,651.58 and 31,128.56

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Solution

The fourth proportional to 54,099.32, 74,651.58 and 31,128.56 is: 42,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,099.32 : 74,651.58 = 31,128.56 : x
  2. Step 2: Convert to fraction form
    54,099.32/74,651.58 = 31,128.56/x
  3. Step 3: Cross multiply
    54,099.32x = 74,651.58 × 31,128.56
  4. Step 4: Simplify right side
    54,099.32x = 2,323,796,187.12
  5. Step 5: Solve for x
    x = 2,323,796,187.12/54,099.32
  6. Step 6: Final answer
    x = 42,954.26

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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.