Home / 68,498.09-102,581.07-47,378.86

Finding the Fourth Proportional to 68,498.09, 102,581.07 and 47,378.86

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Solution

The fourth proportional to 68,498.09, 102,581.07 and 47,378.86 is: 70,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,498.09 : 102,581.07 = 47,378.86 : x
  2. Step 2: Convert to fraction form
    68,498.09/102,581.07 = 47,378.86/x
  3. Step 3: Cross multiply
    68,498.09x = 102,581.07 × 47,378.86
  4. Step 4: Simplify right side
    68,498.09x = 4,860,173,720.06
  5. Step 5: Solve for x
    x = 4,860,173,720.06/68,498.09
  6. Step 6: Final answer
    x = 70,953.42

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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.