Home / 71,570.12-98,771.70-39,742.52

Finding the Fourth Proportional to 71,570.12, 98,771.70 and 39,742.52

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Solution

The fourth proportional to 71,570.12, 98,771.70 and 39,742.52 is: 54,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,570.12 : 98,771.70 = 39,742.52 : x
  2. Step 2: Convert to fraction form
    71,570.12/98,771.70 = 39,742.52/x
  3. Step 3: Cross multiply
    71,570.12x = 98,771.70 × 39,742.52
  4. Step 4: Simplify right side
    71,570.12x = 3,925,436,262.68
  5. Step 5: Solve for x
    x = 3,925,436,262.68/71,570.12
  6. Step 6: Final answer
    x = 54,847.42

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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.