Home / 72,795.16-100,449.18-40,975

Finding the Fourth Proportional to 72,795.16, 100,449.18 and 40,975

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Solution

The fourth proportional to 72,795.16, 100,449.18 and 40,975 is: 56,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,795.16 : 100,449.18 = 40,975 : x
  2. Step 2: Convert to fraction form
    72,795.16/100,449.18 = 40,975/x
  3. Step 3: Cross multiply
    72,795.16x = 100,449.18 × 40,975
  4. Step 4: Simplify right side
    72,795.16x = 4,115,905,150.50
  5. Step 5: Solve for x
    x = 4,115,905,150.50/72,795.16
  6. Step 6: Final answer
    x = 56,540.92

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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.