Home / 78,960.08-108,929.91-47,110.46

Finding the Fourth Proportional to 78,960.08, 108,929.91 and 47,110.46

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Solution

The fourth proportional to 78,960.08, 108,929.91 and 47,110.46 is: 64,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,960.08 : 108,929.91 = 47,110.46 : x
  2. Step 2: Convert to fraction form
    78,960.08/108,929.91 = 47,110.46/x
  3. Step 3: Cross multiply
    78,960.08x = 108,929.91 × 47,110.46
  4. Step 4: Simplify right side
    78,960.08x = 5,131,738,167.86
  5. Step 5: Solve for x
    x = 5,131,738,167.86/78,960.08
  6. Step 6: Final answer
    x = 64,991.55

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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.