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Finding the Fourth Proportional to 86,893.04, 119,912.32 and 47,149.04

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Solution

The fourth proportional to 86,893.04, 119,912.32 and 47,149.04 is: 65,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,893.04 : 119,912.32 = 47,149.04 : x
  2. Step 2: Convert to fraction form
    86,893.04/119,912.32 = 47,149.04/x
  3. Step 3: Cross multiply
    86,893.04x = 119,912.32 × 47,149.04
  4. Step 4: Simplify right side
    86,893.04x = 5,653,750,772.17
  5. Step 5: Solve for x
    x = 5,653,750,772.17/86,893.04
  6. Step 6: Final answer
    x = 65,065.63

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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.