Home / 55,479.21-76,562.49-30,328.71

Finding the Fourth Proportional to 55,479.21, 76,562.49 and 30,328.71

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Solution

The fourth proportional to 55,479.21, 76,562.49 and 30,328.71 is: 41,854.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,479.21 : 76,562.49 = 30,328.71 : x
  2. Step 2: Convert to fraction form
    55,479.21/76,562.49 = 30,328.71/x
  3. Step 3: Cross multiply
    55,479.21x = 76,562.49 × 30,328.71
  4. Step 4: Simplify right side
    55,479.21x = 2,322,041,556.09
  5. Step 5: Solve for x
    x = 2,322,041,556.09/55,479.21
  6. Step 6: Final answer
    x = 41,854.26

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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.