Home / 57,770.28-79,692.66-38,913.48

Finding the Fourth Proportional to 57,770.28, 79,692.66 and 38,913.48

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Solution

The fourth proportional to 57,770.28, 79,692.66 and 38,913.48 is: 53,680.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,770.28 : 79,692.66 = 38,913.48 : x
  2. Step 2: Convert to fraction form
    57,770.28/79,692.66 = 38,913.48/x
  3. Step 3: Cross multiply
    57,770.28x = 79,692.66 × 38,913.48
  4. Step 4: Simplify right side
    57,770.28x = 3,101,118,731.06
  5. Step 5: Solve for x
    x = 3,101,118,731.06/57,770.28
  6. Step 6: Final answer
    x = 53,680.17

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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.