Home / 53,868.81-74,340.27-31,207.85

Finding the Fourth Proportional to 53,868.81, 74,340.27 and 31,207.85

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Solution

The fourth proportional to 53,868.81, 74,340.27 and 31,207.85 is: 43,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,868.81 : 74,340.27 = 31,207.85 : x
  2. Step 2: Convert to fraction form
    53,868.81/74,340.27 = 31,207.85/x
  3. Step 3: Cross multiply
    53,868.81x = 74,340.27 × 31,207.85
  4. Step 4: Simplify right side
    53,868.81x = 2,319,999,623.42
  5. Step 5: Solve for x
    x = 2,319,999,623.42/53,868.81
  6. Step 6: Final answer
    x = 43,067.59

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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.