Home / 75,568.86-113,360.69-28,172.90

Finding the Fourth Proportional to 75,568.86, 113,360.69 and 28,172.90

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Solution

The fourth proportional to 75,568.86, 113,360.69 and 28,172.90 is: 42,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,568.86 : 113,360.69 = 28,172.90 : x
  2. Step 2: Convert to fraction form
    75,568.86/113,360.69 = 28,172.90/x
  3. Step 3: Cross multiply
    75,568.86x = 113,360.69 × 28,172.90
  4. Step 4: Simplify right side
    75,568.86x = 3,193,698,675.63
  5. Step 5: Solve for x
    x = 3,193,698,675.63/75,568.86
  6. Step 6: Final answer
    x = 42,262.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.