Home / 57,490.12-79,268.49-39,349.58

Finding the Fourth Proportional to 57,490.12, 79,268.49 and 39,349.58

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Solution

The fourth proportional to 57,490.12, 79,268.49 and 39,349.58 is: 54,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.12 : 79,268.49 = 39,349.58 : x
  2. Step 2: Convert to fraction form
    57,490.12/79,268.49 = 39,349.58/x
  3. Step 3: Cross multiply
    57,490.12x = 79,268.49 × 39,349.58
  4. Step 4: Simplify right side
    57,490.12x = 3,119,181,788.73
  5. Step 5: Solve for x
    x = 3,119,181,788.73/57,490.12
  6. Step 6: Final answer
    x = 54,255.97

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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.