Home / 281,026.56-421,477.74-81,303.24

Finding the Fourth Proportional to 281,026.56, 421,477.74 and 81,303.24

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Solution

The fourth proportional to 281,026.56, 421,477.74 and 81,303.24 is: 121,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,026.56 : 421,477.74 = 81,303.24 : x
  2. Step 2: Convert to fraction form
    281,026.56/421,477.74 = 81,303.24/x
  3. Step 3: Cross multiply
    281,026.56x = 421,477.74 × 81,303.24
  4. Step 4: Simplify right side
    281,026.56x = 34,267,505,849.88
  5. Step 5: Solve for x
    x = 34,267,505,849.88/281,026.56
  6. Step 6: Final answer
    x = 121,936.89

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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.