Home / 71,125.79-98,155.58-39,296.75

Finding the Fourth Proportional to 71,125.79, 98,155.58 and 39,296.75

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Solution

The fourth proportional to 71,125.79, 98,155.58 and 39,296.75 is: 54,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.79 : 98,155.58 = 39,296.75 : x
  2. Step 2: Convert to fraction form
    71,125.79/98,155.58 = 39,296.75/x
  3. Step 3: Cross multiply
    71,125.79x = 98,155.58 × 39,296.75
  4. Step 4: Simplify right side
    71,125.79x = 3,857,194,601.10
  5. Step 5: Solve for x
    x = 3,857,194,601.10/71,125.79
  6. Step 6: Final answer
    x = 54,230.61

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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.