Home / 40,354.78-55,656.43-35,820.77

Finding the Fourth Proportional to 40,354.78, 55,656.43 and 35,820.77

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Solution

The fourth proportional to 40,354.78, 55,656.43 and 35,820.77 is: 49,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,354.78 : 55,656.43 = 35,820.77 : x
  2. Step 2: Convert to fraction form
    40,354.78/55,656.43 = 35,820.77/x
  3. Step 3: Cross multiply
    40,354.78x = 55,656.43 × 35,820.77
  4. Step 4: Simplify right side
    40,354.78x = 1,993,656,481.31
  5. Step 5: Solve for x
    x = 1,993,656,481.31/40,354.78
  6. Step 6: Final answer
    x = 49,403.23

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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.