Home / 81,731.32-112,789.66-45,922.84

Finding the Fourth Proportional to 81,731.32, 112,789.66 and 45,922.84

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Solution

The fourth proportional to 81,731.32, 112,789.66 and 45,922.84 is: 63,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,731.32 : 112,789.66 = 45,922.84 : x
  2. Step 2: Convert to fraction form
    81,731.32/112,789.66 = 45,922.84/x
  3. Step 3: Cross multiply
    81,731.32x = 112,789.66 × 45,922.84
  4. Step 4: Simplify right side
    81,731.32x = 5,179,621,509.83
  5. Step 5: Solve for x
    x = 5,179,621,509.83/81,731.32
  6. Step 6: Final answer
    x = 63,373.77

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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.