Home / 81,998.06-113,142.30-46,180.40

Finding the Fourth Proportional to 81,998.06, 113,142.30 and 46,180.40

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Solution

The fourth proportional to 81,998.06, 113,142.30 and 46,180.40 is: 63,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,998.06 : 113,142.30 = 46,180.40 : x
  2. Step 2: Convert to fraction form
    81,998.06/113,142.30 = 46,180.40/x
  3. Step 3: Cross multiply
    81,998.06x = 113,142.30 × 46,180.40
  4. Step 4: Simplify right side
    81,998.06x = 5,224,956,670.92
  5. Step 5: Solve for x
    x = 5,224,956,670.92/81,998.06
  6. Step 6: Final answer
    x = 63,720.49

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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.