Home / 54,429.12-75,102.72-30,556.80

Finding the Fourth Proportional to 54,429.12, 75,102.72 and 30,556.80

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Solution

The fourth proportional to 54,429.12, 75,102.72 and 30,556.80 is: 42,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,429.12 : 75,102.72 = 30,556.80 : x
  2. Step 2: Convert to fraction form
    54,429.12/75,102.72 = 30,556.80/x
  3. Step 3: Cross multiply
    54,429.12x = 75,102.72 × 30,556.80
  4. Step 4: Simplify right side
    54,429.12x = 2,294,898,794.50
  5. Step 5: Solve for x
    x = 2,294,898,794.50/54,429.12
  6. Step 6: Final answer
    x = 42,163.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.