Home / 72,163.44-99,587.61-40,332.40

Finding the Fourth Proportional to 72,163.44, 99,587.61 and 40,332.40

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Solution

The fourth proportional to 72,163.44, 99,587.61 and 40,332.40 is: 55,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,163.44 : 99,587.61 = 40,332.40 : x
  2. Step 2: Convert to fraction form
    72,163.44/99,587.61 = 40,332.40/x
  3. Step 3: Cross multiply
    72,163.44x = 99,587.61 × 40,332.40
  4. Step 4: Simplify right side
    72,163.44x = 4,016,607,072.59
  5. Step 5: Solve for x
    x = 4,016,607,072.59/72,163.44
  6. Step 6: Final answer
    x = 55,659.86

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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.