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Finding the Fourth Proportional to 57,551.80, 79,433.74 and 38,677.99

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Solution

The fourth proportional to 57,551.80, 79,433.74 and 38,677.99 is: 53,383.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,551.80 : 79,433.74 = 38,677.99 : x
  2. Step 2: Convert to fraction form
    57,551.80/79,433.74 = 38,677.99/x
  3. Step 3: Cross multiply
    57,551.80x = 79,433.74 × 38,677.99
  4. Step 4: Simplify right side
    57,551.80x = 3,072,337,401.38
  5. Step 5: Solve for x
    x = 3,072,337,401.38/57,551.80
  6. Step 6: Final answer
    x = 53,383.86

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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.