Home / 81,611.62-112,626.05-45,804.36

Finding the Fourth Proportional to 81,611.62, 112,626.05 and 45,804.36

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Solution

The fourth proportional to 81,611.62, 112,626.05 and 45,804.36 is: 63,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.62 : 112,626.05 = 45,804.36 : x
  2. Step 2: Convert to fraction form
    81,611.62/112,626.05 = 45,804.36/x
  3. Step 3: Cross multiply
    81,611.62x = 112,626.05 × 45,804.36
  4. Step 4: Simplify right side
    81,611.62x = 5,158,764,139.58
  5. Step 5: Solve for x
    x = 5,158,764,139.58/81,611.62
  6. Step 6: Final answer
    x = 63,211.15

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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.