Home / 71,150.54-98,184.55-39,318.75

Finding the Fourth Proportional to 71,150.54, 98,184.55 and 39,318.75

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Solution

The fourth proportional to 71,150.54, 98,184.55 and 39,318.75 is: 54,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150.54 : 98,184.55 = 39,318.75 : x
  2. Step 2: Convert to fraction form
    71,150.54/98,184.55 = 39,318.75/x
  3. Step 3: Cross multiply
    71,150.54x = 98,184.55 × 39,318.75
  4. Step 4: Simplify right side
    71,150.54x = 3,860,493,775.31
  5. Step 5: Solve for x
    x = 3,860,493,775.31/71,150.54
  6. Step 6: Final answer
    x = 54,258.11

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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.