Home / 72,433.65-99,958.67-40,170.58

Finding the Fourth Proportional to 72,433.65, 99,958.67 and 40,170.58

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Solution

The fourth proportional to 72,433.65, 99,958.67 and 40,170.58 is: 55,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.65 : 99,958.67 = 40,170.58 : x
  2. Step 2: Convert to fraction form
    72,433.65/99,958.67 = 40,170.58/x
  3. Step 3: Cross multiply
    72,433.65x = 99,958.67 × 40,170.58
  4. Step 4: Simplify right side
    72,433.65x = 4,015,397,749.93
  5. Step 5: Solve for x
    x = 4,015,397,749.93/72,433.65
  6. Step 6: Final answer
    x = 55,435.53

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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.