Home / 72,437.22-99,958.38-40,173.54

Finding the Fourth Proportional to 72,437.22, 99,958.38 and 40,173.54

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Solution

The fourth proportional to 72,437.22, 99,958.38 and 40,173.54 is: 55,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,437.22 : 99,958.38 = 40,173.54 : x
  2. Step 2: Convert to fraction form
    72,437.22/99,958.38 = 40,173.54/x
  3. Step 3: Cross multiply
    72,437.22x = 99,958.38 × 40,173.54
  4. Step 4: Simplify right side
    72,437.22x = 4,015,681,977.27
  5. Step 5: Solve for x
    x = 4,015,681,977.27/72,437.22
  6. Step 6: Final answer
    x = 55,436.72

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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.