Home / 71,120.35-98,145.84-40,904.25

Finding the Fourth Proportional to 71,120.35, 98,145.84 and 40,904.25

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Solution

The fourth proportional to 71,120.35, 98,145.84 and 40,904.25 is: 56,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,120.35 : 98,145.84 = 40,904.25 : x
  2. Step 2: Convert to fraction form
    71,120.35/98,145.84 = 40,904.25/x
  3. Step 3: Cross multiply
    71,120.35x = 98,145.84 × 40,904.25
  4. Step 4: Simplify right side
    71,120.35x = 4,014,581,975.82
  5. Step 5: Solve for x
    x = 4,014,581,975.82/71,120.35
  6. Step 6: Final answer
    x = 56,447.73

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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.