Home / 74,674.10-103,047.29-40,682.86

Finding the Fourth Proportional to 74,674.10, 103,047.29 and 40,682.86

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Solution

The fourth proportional to 74,674.10, 103,047.29 and 40,682.86 is: 56,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,674.10 : 103,047.29 = 40,682.86 : x
  2. Step 2: Convert to fraction form
    74,674.10/103,047.29 = 40,682.86/x
  3. Step 3: Cross multiply
    74,674.10x = 103,047.29 × 40,682.86
  4. Step 4: Simplify right side
    74,674.10x = 4,192,258,163.98
  5. Step 5: Solve for x
    x = 4,192,258,163.98/74,674.10
  6. Step 6: Final answer
    x = 56,140.72

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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.