Home / 74,340.81-102,591.07-40,349.61

Finding the Fourth Proportional to 74,340.81, 102,591.07 and 40,349.61

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Solution

The fourth proportional to 74,340.81, 102,591.07 and 40,349.61 is: 55,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.81 : 102,591.07 = 40,349.61 : x
  2. Step 2: Convert to fraction form
    74,340.81/102,591.07 = 40,349.61/x
  3. Step 3: Cross multiply
    74,340.81x = 102,591.07 × 40,349.61
  4. Step 4: Simplify right side
    74,340.81x = 4,139,509,563.11
  5. Step 5: Solve for x
    x = 4,139,509,563.11/74,340.81
  6. Step 6: Final answer
    x = 55,682.87

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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.