Home / 81,738.65-112,796.66-45,439.92

Finding the Fourth Proportional to 81,738.65, 112,796.66 and 45,439.92

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Solution

The fourth proportional to 81,738.65, 112,796.66 and 45,439.92 is: 62,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,738.65 : 112,796.66 = 45,439.92 : x
  2. Step 2: Convert to fraction form
    81,738.65/112,796.66 = 45,439.92/x
  3. Step 3: Cross multiply
    81,738.65x = 112,796.66 × 45,439.92
  4. Step 4: Simplify right side
    81,738.65x = 5,125,470,979.47
  5. Step 5: Solve for x
    x = 5,125,470,979.47/81,738.65
  6. Step 6: Final answer
    x = 62,705.60

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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.