Home / 72,004.74-99,371.32-40,174.33

Finding the Fourth Proportional to 72,004.74, 99,371.32 and 40,174.33

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Solution

The fourth proportional to 72,004.74, 99,371.32 and 40,174.33 is: 55,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,004.74 : 99,371.32 = 40,174.33 : x
  2. Step 2: Convert to fraction form
    72,004.74/99,371.32 = 40,174.33/x
  3. Step 3: Cross multiply
    72,004.74x = 99,371.32 × 40,174.33
  4. Step 4: Simplify right side
    72,004.74x = 3,992,176,202.22
  5. Step 5: Solve for x
    x = 3,992,176,202.22/72,004.74
  6. Step 6: Final answer
    x = 55,443.24

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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.