Home / 74,168.94-102,352.35-40,634.86

Finding the Fourth Proportional to 74,168.94, 102,352.35 and 40,634.86

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Solution

The fourth proportional to 74,168.94, 102,352.35 and 40,634.86 is: 56,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.94 : 102,352.35 = 40,634.86 : x
  2. Step 2: Convert to fraction form
    74,168.94/102,352.35 = 40,634.86/x
  3. Step 3: Cross multiply
    74,168.94x = 102,352.35 × 40,634.86
  4. Step 4: Simplify right side
    74,168.94x = 4,159,073,412.92
  5. Step 5: Solve for x
    x = 4,159,073,412.92/74,168.94
  6. Step 6: Final answer
    x = 56,075.68

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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.