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Finding the Fourth Proportional to 57,630.88, 79,530.96 and 36,419.68

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Solution

The fourth proportional to 57,630.88, 79,530.96 and 36,419.68 is: 50,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,630.88 : 79,530.96 = 36,419.68 : x
  2. Step 2: Convert to fraction form
    57,630.88/79,530.96 = 36,419.68/x
  3. Step 3: Cross multiply
    57,630.88x = 79,530.96 × 36,419.68
  4. Step 4: Simplify right side
    57,630.88x = 2,896,492,113.29
  5. Step 5: Solve for x
    x = 2,896,492,113.29/57,630.88
  6. Step 6: Final answer
    x = 50,259.38

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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.