Home / 254,021.35-381,032.13-76,528.39

Finding the Fourth Proportional to 254,021.35, 381,032.13 and 76,528.39

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Solution

The fourth proportional to 254,021.35, 381,032.13 and 76,528.39 is: 114,792.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,021.35 : 381,032.13 = 76,528.39 : x
  2. Step 2: Convert to fraction form
    254,021.35/381,032.13 = 76,528.39/x
  3. Step 3: Cross multiply
    254,021.35x = 381,032.13 × 76,528.39
  4. Step 4: Simplify right side
    254,021.35x = 29,159,775,447.17
  5. Step 5: Solve for x
    x = 29,159,775,447.17/254,021.35
  6. Step 6: Final answer
    x = 114,792.62

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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.