Home / 72,370.24-99,859.32-40,540.48

Finding the Fourth Proportional to 72,370.24, 99,859.32 and 40,540.48

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Solution

The fourth proportional to 72,370.24, 99,859.32 and 40,540.48 is: 55,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,370.24 : 99,859.32 = 40,540.48 : x
  2. Step 2: Convert to fraction form
    72,370.24/99,859.32 = 40,540.48/x
  3. Step 3: Cross multiply
    72,370.24x = 99,859.32 × 40,540.48
  4. Step 4: Simplify right side
    72,370.24x = 4,048,344,765.27
  5. Step 5: Solve for x
    x = 4,048,344,765.27/72,370.24
  6. Step 6: Final answer
    x = 55,939.36

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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.