Home / 74,770.20-103,185.18-42,945.48

Finding the Fourth Proportional to 74,770.20, 103,185.18 and 42,945.48

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Solution

The fourth proportional to 74,770.20, 103,185.18 and 42,945.48 is: 59,266.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.20 : 103,185.18 = 42,945.48 : x
  2. Step 2: Convert to fraction form
    74,770.20/103,185.18 = 42,945.48/x
  3. Step 3: Cross multiply
    74,770.20x = 103,185.18 × 42,945.48
  4. Step 4: Simplify right side
    74,770.20x = 4,431,337,083.99
  5. Step 5: Solve for x
    x = 4,431,337,083.99/74,770.20
  6. Step 6: Final answer
    x = 59,266.09

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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.