Home / 57,403.91-79,218.34-31,563.55

Finding the Fourth Proportional to 57,403.91, 79,218.34 and 31,563.55

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Solution

The fourth proportional to 57,403.91, 79,218.34 and 31,563.55 is: 43,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,403.91 : 79,218.34 = 31,563.55 : x
  2. Step 2: Convert to fraction form
    57,403.91/79,218.34 = 31,563.55/x
  3. Step 3: Cross multiply
    57,403.91x = 79,218.34 × 31,563.55
  4. Step 4: Simplify right side
    57,403.91x = 2,500,412,035.51
  5. Step 5: Solve for x
    x = 2,500,412,035.51/57,403.91
  6. Step 6: Final answer
    x = 43,558.22

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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.