Home / 54,231.36-74,838.24-31,574.40

Finding the Fourth Proportional to 54,231.36, 74,838.24 and 31,574.40

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Solution

The fourth proportional to 54,231.36, 74,838.24 and 31,574.40 is: 43,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,231.36 : 74,838.24 = 31,574.40 : x
  2. Step 2: Convert to fraction form
    54,231.36/74,838.24 = 31,574.40/x
  3. Step 3: Cross multiply
    54,231.36x = 74,838.24 × 31,574.40
  4. Step 4: Simplify right side
    54,231.36x = 2,362,972,525.06
  5. Step 5: Solve for x
    x = 2,362,972,525.06/54,231.36
  6. Step 6: Final answer
    x = 43,572.07

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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.