Home / 81,191.43-112,035.02-45,380.25

Finding the Fourth Proportional to 81,191.43, 112,035.02 and 45,380.25

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Solution

The fourth proportional to 81,191.43, 112,035.02 and 45,380.25 is: 62,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,191.43 : 112,035.02 = 45,380.25 : x
  2. Step 2: Convert to fraction form
    81,191.43/112,035.02 = 45,380.25/x
  3. Step 3: Cross multiply
    81,191.43x = 112,035.02 × 45,380.25
  4. Step 4: Simplify right side
    81,191.43x = 5,084,176,989.45
  5. Step 5: Solve for x
    x = 5,084,176,989.45/81,191.43
  6. Step 6: Final answer
    x = 62,619.63

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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.