Home / 86,218.37-118,980.20-48,492.62

Finding the Fourth Proportional to 86,218.37, 118,980.20 and 48,492.62

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Solution

The fourth proportional to 86,218.37, 118,980.20 and 48,492.62 is: 66,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,218.37 : 118,980.20 = 48,492.62 : x
  2. Step 2: Convert to fraction form
    86,218.37/118,980.20 = 48,492.62/x
  3. Step 3: Cross multiply
    86,218.37x = 118,980.20 × 48,492.62
  4. Step 4: Simplify right side
    86,218.37x = 5,769,660,788.76
  5. Step 5: Solve for x
    x = 5,769,660,788.76/86,218.37
  6. Step 6: Final answer
    x = 66,919.16

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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.