Home / 72,584.15-100,163.54-40,754.39

Finding the Fourth Proportional to 72,584.15, 100,163.54 and 40,754.39

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Solution

The fourth proportional to 72,584.15, 100,163.54 and 40,754.39 is: 56,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,584.15 : 100,163.54 = 40,754.39 : x
  2. Step 2: Convert to fraction form
    72,584.15/100,163.54 = 40,754.39/x
  3. Step 3: Cross multiply
    72,584.15x = 100,163.54 × 40,754.39
  4. Step 4: Simplify right side
    72,584.15x = 4,082,103,769.17
  5. Step 5: Solve for x
    x = 4,082,103,769.17/72,584.15
  6. Step 6: Final answer
    x = 56,239.60

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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.