Home / 42,676.32-58,906.80-40,447.20

Finding the Fourth Proportional to 42,676.32, 58,906.80 and 40,447.20

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Solution

The fourth proportional to 42,676.32, 58,906.80 and 40,447.20 is: 55,829.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,676.32 : 58,906.80 = 40,447.20 : x
  2. Step 2: Convert to fraction form
    42,676.32/58,906.80 = 40,447.20/x
  3. Step 3: Cross multiply
    42,676.32x = 58,906.80 × 40,447.20
  4. Step 4: Simplify right side
    42,676.32x = 2,382,615,120.96
  5. Step 5: Solve for x
    x = 2,382,615,120.96/42,676.32
  6. Step 6: Final answer
    x = 55,829.91

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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.