Home / 73,012.23-109,518.75-30,881.70

Finding the Fourth Proportional to 73,012.23, 109,518.75 and 30,881.70

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Solution

The fourth proportional to 73,012.23, 109,518.75 and 30,881.70 is: 46,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,012.23 : 109,518.75 = 30,881.70 : x
  2. Step 2: Convert to fraction form
    73,012.23/109,518.75 = 30,881.70/x
  3. Step 3: Cross multiply
    73,012.23x = 109,518.75 × 30,881.70
  4. Step 4: Simplify right side
    73,012.23x = 3,382,125,181.88
  5. Step 5: Solve for x
    x = 3,382,125,181.88/73,012.23
  6. Step 6: Final answer
    x = 46,322.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.