Home / 57,489.21-79,332.48-40,500.27

Finding the Fourth Proportional to 57,489.21, 79,332.48 and 40,500.27

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Solution

The fourth proportional to 57,489.21, 79,332.48 and 40,500.27 is: 55,888.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.21 : 79,332.48 = 40,500.27 : x
  2. Step 2: Convert to fraction form
    57,489.21/79,332.48 = 40,500.27/x
  3. Step 3: Cross multiply
    57,489.21x = 79,332.48 × 40,500.27
  4. Step 4: Simplify right side
    57,489.21x = 3,212,986,859.77
  5. Step 5: Solve for x
    x = 3,212,986,859.77/57,489.21
  6. Step 6: Final answer
    x = 55,888.52

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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.