Home / 86,219.84-118,982.10-48,494.12

Finding the Fourth Proportional to 86,219.84, 118,982.10 and 48,494.12

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Solution

The fourth proportional to 86,219.84, 118,982.10 and 48,494.12 is: 66,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,219.84 : 118,982.10 = 48,494.12 : x
  2. Step 2: Convert to fraction form
    86,219.84/118,982.10 = 48,494.12/x
  3. Step 3: Cross multiply
    86,219.84x = 118,982.10 × 48,494.12
  4. Step 4: Simplify right side
    86,219.84x = 5,769,932,235.25
  5. Step 5: Solve for x
    x = 5,769,932,235.25/86,219.84
  6. Step 6: Final answer
    x = 66,921.17

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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.