Home / 321,621.04-482,454.66-84,961.36

Finding the Fourth Proportional to 321,621.04, 482,454.66 and 84,961.36

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Solution

The fourth proportional to 321,621.04, 482,454.66 and 84,961.36 is: 127,448.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,621.04 : 482,454.66 = 84,961.36 : x
  2. Step 2: Convert to fraction form
    321,621.04/482,454.66 = 84,961.36/x
  3. Step 3: Cross multiply
    321,621.04x = 482,454.66 × 84,961.36
  4. Step 4: Simplify right side
    321,621.04x = 40,990,004,051.94
  5. Step 5: Solve for x
    x = 40,990,004,051.94/321,621.04
  6. Step 6: Final answer
    x = 127,448.14

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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.