Home / 70,917.90-97,839.27-40,692.30

Finding the Fourth Proportional to 70,917.90, 97,839.27 and 40,692.30

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Solution

The fourth proportional to 70,917.90, 97,839.27 and 40,692.30 is: 56,139.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,917.90 : 97,839.27 = 40,692.30 : x
  2. Step 2: Convert to fraction form
    70,917.90/97,839.27 = 40,692.30/x
  3. Step 3: Cross multiply
    70,917.90x = 97,839.27 × 40,692.30
  4. Step 4: Simplify right side
    70,917.90x = 3,981,304,926.62
  5. Step 5: Solve for x
    x = 3,981,304,926.62/70,917.90
  6. Step 6: Final answer
    x = 56,139.63

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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.