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Finding the Fourth Proportional to 74,201.63, 102,404.72 and 40,674.11

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Solution

The fourth proportional to 74,201.63, 102,404.72 and 40,674.11 is: 56,133.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,201.63 : 102,404.72 = 40,674.11 : x
  2. Step 2: Convert to fraction form
    74,201.63/102,404.72 = 40,674.11/x
  3. Step 3: Cross multiply
    74,201.63x = 102,404.72 × 40,674.11
  4. Step 4: Simplify right side
    74,201.63x = 4,165,220,435.46
  5. Step 5: Solve for x
    x = 4,165,220,435.46/74,201.63
  6. Step 6: Final answer
    x = 56,133.82

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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.