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Finding the Fourth Proportional to 86,148, 118,891.84 and 48,422.56

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Solution

The fourth proportional to 86,148, 118,891.84 and 48,422.56 is: 66,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,148 : 118,891.84 = 48,422.56 : x
  2. Step 2: Convert to fraction form
    86,148/118,891.84 = 48,422.56/x
  3. Step 3: Cross multiply
    86,148x = 118,891.84 × 48,422.56
  4. Step 4: Simplify right side
    86,148x = 5,757,047,255.91
  5. Step 5: Solve for x
    x = 5,757,047,255.91/86,148
  6. Step 6: Final answer
    x = 66,827.40

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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.