Home / 72,289.97-99,757.46-40,023.95

Finding the Fourth Proportional to 72,289.97, 99,757.46 and 40,023.95

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Solution

The fourth proportional to 72,289.97, 99,757.46 and 40,023.95 is: 55,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,289.97 : 99,757.46 = 40,023.95 : x
  2. Step 2: Convert to fraction form
    72,289.97/99,757.46 = 40,023.95/x
  3. Step 3: Cross multiply
    72,289.97x = 99,757.46 × 40,023.95
  4. Step 4: Simplify right side
    72,289.97x = 3,992,686,892.26
  5. Step 5: Solve for x
    x = 3,992,686,892.26/72,289.97
  6. Step 6: Final answer
    x = 55,231.55

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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.