Home / 81,989.92-113,147.53-46,181.21

Finding the Fourth Proportional to 81,989.92, 113,147.53 and 46,181.21

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Solution

The fourth proportional to 81,989.92, 113,147.53 and 46,181.21 is: 63,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,989.92 : 113,147.53 = 46,181.21 : x
  2. Step 2: Convert to fraction form
    81,989.92/113,147.53 = 46,181.21/x
  3. Step 3: Cross multiply
    81,989.92x = 113,147.53 × 46,181.21
  4. Step 4: Simplify right side
    81,989.92x = 5,225,289,278.17
  5. Step 5: Solve for x
    x = 5,225,289,278.17/81,989.92
  6. Step 6: Final answer
    x = 63,730.87

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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.