Home / 81,976.64-113,126.56-46,166.72

Finding the Fourth Proportional to 81,976.64, 113,126.56 and 46,166.72

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Solution

The fourth proportional to 81,976.64, 113,126.56 and 46,166.72 is: 63,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,976.64 : 113,126.56 = 46,166.72 : x
  2. Step 2: Convert to fraction form
    81,976.64/113,126.56 = 46,166.72/x
  3. Step 3: Cross multiply
    81,976.64x = 113,126.56 × 46,166.72
  4. Step 4: Simplify right side
    81,976.64x = 5,222,682,220.08
  5. Step 5: Solve for x
    x = 5,222,682,220.08/81,976.64
  6. Step 6: Final answer
    x = 63,709.40

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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.