Home / 53,789.38-74,228.03-31,125.23

Finding the Fourth Proportional to 53,789.38, 74,228.03 and 31,125.23

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Solution

The fourth proportional to 53,789.38, 74,228.03 and 31,125.23 is: 42,952.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,789.38 : 74,228.03 = 31,125.23 : x
  2. Step 2: Convert to fraction form
    53,789.38/74,228.03 = 31,125.23/x
  3. Step 3: Cross multiply
    53,789.38x = 74,228.03 × 31,125.23
  4. Step 4: Simplify right side
    53,789.38x = 2,310,364,374.51
  5. Step 5: Solve for x
    x = 2,310,364,374.51/53,789.38
  6. Step 6: Final answer
    x = 42,952.06

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Double scale
Find fourth proportional to 53,790.38, 74,229.41 and 31,126.23
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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.