Home / 53,731.92-74,144.40-31,067.28

Finding the Fourth Proportional to 53,731.92, 74,144.40 and 31,067.28

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Solution

The fourth proportional to 53,731.92, 74,144.40 and 31,067.28 is: 42,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,731.92 : 74,144.40 = 31,067.28 : x
  2. Step 2: Convert to fraction form
    53,731.92/74,144.40 = 31,067.28/x
  3. Step 3: Cross multiply
    53,731.92x = 74,144.40 × 31,067.28
  4. Step 4: Simplify right side
    53,731.92x = 2,303,464,835.23
  5. Step 5: Solve for x
    x = 2,303,464,835.23/53,731.92
  6. Step 6: Final answer
    x = 42,869.58

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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.