Home / 74,741.23-103,142.83-40,749.71

Finding the Fourth Proportional to 74,741.23, 103,142.83 and 40,749.71

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Solution

The fourth proportional to 74,741.23, 103,142.83 and 40,749.71 is: 56,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,741.23 : 103,142.83 = 40,749.71 : x
  2. Step 2: Convert to fraction form
    74,741.23/103,142.83 = 40,749.71/x
  3. Step 3: Cross multiply
    74,741.23x = 103,142.83 × 40,749.71
  4. Step 4: Simplify right side
    74,741.23x = 4,203,040,411.08
  5. Step 5: Solve for x
    x = 4,203,040,411.08/74,741.23
  6. Step 6: Final answer
    x = 56,234.56

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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.