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Finding the Fourth Proportional to 73,873.12, 101,945.28 and 40,339.12

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Solution

The fourth proportional to 73,873.12, 101,945.28 and 40,339.12 is: 55,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,873.12 : 101,945.28 = 40,339.12 : x
  2. Step 2: Convert to fraction form
    73,873.12/101,945.28 = 40,339.12/x
  3. Step 3: Cross multiply
    73,873.12x = 101,945.28 × 40,339.12
  4. Step 4: Simplify right side
    73,873.12x = 4,112,382,883.35
  5. Step 5: Solve for x
    x = 4,112,382,883.35/73,873.12
  6. Step 6: Final answer
    x = 55,668.19

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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.