Home / 42,057.60-57,860.64-40,891.20

Finding the Fourth Proportional to 42,057.60, 57,860.64 and 40,891.20

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Solution

The fourth proportional to 42,057.60, 57,860.64 and 40,891.20 is: 56,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,057.60 : 57,860.64 = 40,891.20 : x
  2. Step 2: Convert to fraction form
    42,057.60/57,860.64 = 40,891.20/x
  3. Step 3: Cross multiply
    42,057.60x = 57,860.64 × 40,891.20
  4. Step 4: Simplify right side
    42,057.60x = 2,365,991,002.37
  5. Step 5: Solve for x
    x = 2,365,991,002.37/42,057.60
  6. Step 6: Final answer
    x = 56,255.97

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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.