Home / 74,738.34-103,140.27-40,747.10

Finding the Fourth Proportional to 74,738.34, 103,140.27 and 40,747.10

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Solution

The fourth proportional to 74,738.34, 103,140.27 and 40,747.10 is: 56,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,738.34 : 103,140.27 = 40,747.10 : x
  2. Step 2: Convert to fraction form
    74,738.34/103,140.27 = 40,747.10/x
  3. Step 3: Cross multiply
    74,738.34x = 103,140.27 × 40,747.10
  4. Step 4: Simplify right side
    74,738.34x = 4,202,666,380.02
  5. Step 5: Solve for x
    x = 4,202,666,380.02/74,738.34
  6. Step 6: Final answer
    x = 56,231.73

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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.