Home / 53,838.72-74,286.09-31,176.36

Finding the Fourth Proportional to 53,838.72, 74,286.09 and 31,176.36

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Solution

The fourth proportional to 53,838.72, 74,286.09 and 31,176.36 is: 43,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,838.72 : 74,286.09 = 31,176.36 : x
  2. Step 2: Convert to fraction form
    53,838.72/74,286.09 = 31,176.36/x
  3. Step 3: Cross multiply
    53,838.72x = 74,286.09 × 31,176.36
  4. Step 4: Simplify right side
    53,838.72x = 2,315,969,884.83
  5. Step 5: Solve for x
    x = 2,315,969,884.83/53,838.72
  6. Step 6: Final answer
    x = 43,016.81

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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.