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Finding the Fourth Proportional to 86,689.44, 119,627.28 and 48,969.12

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Solution

The fourth proportional to 86,689.44, 119,627.28 and 48,969.12 is: 67,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.44 : 119,627.28 = 48,969.12 : x
  2. Step 2: Convert to fraction form
    86,689.44/119,627.28 = 48,969.12/x
  3. Step 3: Cross multiply
    86,689.44x = 119,627.28 × 48,969.12
  4. Step 4: Simplify right side
    86,689.44x = 5,858,042,629.59
  5. Step 5: Solve for x
    x = 5,858,042,629.59/86,689.44
  6. Step 6: Final answer
    x = 67,575.04

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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.