Home / 281,023.55-421,557.33-81,346.94

Finding the Fourth Proportional to 281,023.55, 421,557.33 and 81,346.94

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Solution

The fourth proportional to 281,023.55, 421,557.33 and 81,346.94 is: 122,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,023.55 : 421,557.33 = 81,346.94 : x
  2. Step 2: Convert to fraction form
    281,023.55/421,557.33 = 81,346.94/x
  3. Step 3: Cross multiply
    281,023.55x = 421,557.33 × 81,346.94
  4. Step 4: Simplify right side
    281,023.55x = 34,292,398,830.07
  5. Step 5: Solve for x
    x = 34,292,398,830.07/281,023.55
  6. Step 6: Final answer
    x = 122,026.78

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1.5x scale

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.