Home / 86,225.20-118,991.76-48,499.12

Finding the Fourth Proportional to 86,225.20, 118,991.76 and 48,499.12

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Solution

The fourth proportional to 86,225.20, 118,991.76 and 48,499.12 is: 66,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,225.20 : 118,991.76 = 48,499.12 : x
  2. Step 2: Convert to fraction form
    86,225.20/118,991.76 = 48,499.12/x
  3. Step 3: Cross multiply
    86,225.20x = 118,991.76 × 48,499.12
  4. Step 4: Simplify right side
    86,225.20x = 5,770,995,647.25
  5. Step 5: Solve for x
    x = 5,770,995,647.25/86,225.20
  6. Step 6: Final answer
    x = 66,929.34

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1.5x scale

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.