Home / 72,163.72-99,585.66-40,332.34

Finding the Fourth Proportional to 72,163.72, 99,585.66 and 40,332.34

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Solution

The fourth proportional to 72,163.72, 99,585.66 and 40,332.34 is: 55,658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,163.72 : 99,585.66 = 40,332.34 : x
  2. Step 2: Convert to fraction form
    72,163.72/99,585.66 = 40,332.34/x
  3. Step 3: Cross multiply
    72,163.72x = 99,585.66 × 40,332.34
  4. Step 4: Simplify right side
    72,163.72x = 4,016,522,698.24
  5. Step 5: Solve for x
    x = 4,016,522,698.24/72,163.72
  6. Step 6: Final answer
    x = 55,658.48

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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.