Home / 81,980.50-113,113.65-46,163.38

Finding the Fourth Proportional to 81,980.50, 113,113.65 and 46,163.38

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Solution

The fourth proportional to 81,980.50, 113,113.65 and 46,163.38 is: 63,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,980.50 : 113,113.65 = 46,163.38 : x
  2. Step 2: Convert to fraction form
    81,980.50/113,113.65 = 46,163.38/x
  3. Step 3: Cross multiply
    81,980.50x = 113,113.65 × 46,163.38
  4. Step 4: Simplify right side
    81,980.50x = 5,221,708,408.14
  5. Step 5: Solve for x
    x = 5,221,708,408.14/81,980.50
  6. Step 6: Final answer
    x = 63,694.52

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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.