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Finding the Fourth Proportional to 57,483.88, 79,326.12 and 31,989.84

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Solution

The fourth proportional to 57,483.88, 79,326.12 and 31,989.84 is: 44,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,483.88 : 79,326.12 = 31,989.84 : x
  2. Step 2: Convert to fraction form
    57,483.88/79,326.12 = 31,989.84/x
  3. Step 3: Cross multiply
    57,483.88x = 79,326.12 × 31,989.84
  4. Step 4: Simplify right side
    57,483.88x = 2,537,629,489.99
  5. Step 5: Solve for x
    x = 2,537,629,489.99/57,483.88
  6. Step 6: Final answer
    x = 44,145.07

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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.