Home / 71,173.76-98,219.28-39,342.08

Finding the Fourth Proportional to 71,173.76, 98,219.28 and 39,342.08

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Solution

The fourth proportional to 71,173.76, 98,219.28 and 39,342.08 is: 54,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,173.76 : 98,219.28 = 39,342.08 : x
  2. Step 2: Convert to fraction form
    71,173.76/98,219.28 = 39,342.08/x
  3. Step 3: Cross multiply
    71,173.76x = 98,219.28 × 39,342.08
  4. Step 4: Simplify right side
    71,173.76x = 3,864,150,771.30
  5. Step 5: Solve for x
    x = 3,864,150,771.30/71,173.76
  6. Step 6: Final answer
    x = 54,291.79

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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.