Home / 57,081.12-78,771.84-34,725.12

Finding the Fourth Proportional to 57,081.12, 78,771.84 and 34,725.12

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Solution

The fourth proportional to 57,081.12, 78,771.84 and 34,725.12 is: 47,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,081.12 : 78,771.84 = 34,725.12 : x
  2. Step 2: Convert to fraction form
    57,081.12/78,771.84 = 34,725.12/x
  3. Step 3: Cross multiply
    57,081.12x = 78,771.84 × 34,725.12
  4. Step 4: Simplify right side
    57,081.12x = 2,735,361,596.62
  5. Step 5: Solve for x
    x = 2,735,361,596.62/57,081.12
  6. Step 6: Final answer
    x = 47,920.60

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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.