Home / 81,660.96-112,690.80-45,851.04

Finding the Fourth Proportional to 81,660.96, 112,690.80 and 45,851.04

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Solution

The fourth proportional to 81,660.96, 112,690.80 and 45,851.04 is: 63,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660.96 : 112,690.80 = 45,851.04 : x
  2. Step 2: Convert to fraction form
    81,660.96/112,690.80 = 45,851.04/x
  3. Step 3: Cross multiply
    81,660.96x = 112,690.80 × 45,851.04
  4. Step 4: Simplify right side
    81,660.96x = 5,166,990,378.43
  5. Step 5: Solve for x
    x = 5,166,990,378.43/81,660.96
  6. Step 6: Final answer
    x = 63,273.69

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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.