Home / 85,556.46-128,356.56-35,619.96

Finding the Fourth Proportional to 85,556.46, 128,356.56 and 35,619.96

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Solution

The fourth proportional to 85,556.46, 128,356.56 and 35,619.96 is: 53,439.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.46 : 128,356.56 = 35,619.96 : x
  2. Step 2: Convert to fraction form
    85,556.46/128,356.56 = 35,619.96/x
  3. Step 3: Cross multiply
    85,556.46x = 128,356.56 × 35,619.96
  4. Step 4: Simplify right side
    85,556.46x = 4,572,055,354.84
  5. Step 5: Solve for x
    x = 4,572,055,354.84/85,556.46
  6. Step 6: Final answer
    x = 53,439.04

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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.