Home / 55,725.72-76,906.32-30,580.08

Finding the Fourth Proportional to 55,725.72, 76,906.32 and 30,580.08

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Solution

The fourth proportional to 55,725.72, 76,906.32 and 30,580.08 is: 42,203.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,725.72 : 76,906.32 = 30,580.08 : x
  2. Step 2: Convert to fraction form
    55,725.72/76,906.32 = 30,580.08/x
  3. Step 3: Cross multiply
    55,725.72x = 76,906.32 × 30,580.08
  4. Step 4: Simplify right side
    55,725.72x = 2,351,801,418.11
  5. Step 5: Solve for x
    x = 2,351,801,418.11/55,725.72
  6. Step 6: Final answer
    x = 42,203.16

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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.