Home / 53,727.29-74,139.32-31,067.75

Finding the Fourth Proportional to 53,727.29, 74,139.32 and 31,067.75

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Solution

The fourth proportional to 53,727.29, 74,139.32 and 31,067.75 is: 42,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,727.29 : 74,139.32 = 31,067.75 : x
  2. Step 2: Convert to fraction form
    53,727.29/74,139.32 = 31,067.75/x
  3. Step 3: Cross multiply
    53,727.29x = 74,139.32 × 31,067.75
  4. Step 4: Simplify right side
    53,727.29x = 2,303,341,843.93
  5. Step 5: Solve for x
    x = 2,303,341,843.93/53,727.29
  6. Step 6: Final answer
    x = 42,870.98

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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.