Home / 72,727.24-100,355.92-40,456.60

Finding the Fourth Proportional to 72,727.24, 100,355.92 and 40,456.60

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Solution

The fourth proportional to 72,727.24, 100,355.92 and 40,456.60 is: 55,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,727.24 : 100,355.92 = 40,456.60 : x
  2. Step 2: Convert to fraction form
    72,727.24/100,355.92 = 40,456.60/x
  3. Step 3: Cross multiply
    72,727.24x = 100,355.92 × 40,456.60
  4. Step 4: Simplify right side
    72,727.24x = 4,060,059,313.07
  5. Step 5: Solve for x
    x = 4,060,059,313.07/72,727.24
  6. Step 6: Final answer
    x = 55,825.84

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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.