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Finding the Fourth Proportional to 86,010.72, 118,702 and 50,203.04

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Solution

The fourth proportional to 86,010.72, 118,702 and 50,203.04 is: 69,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,010.72 : 118,702 = 50,203.04 : x
  2. Step 2: Convert to fraction form
    86,010.72/118,702 = 50,203.04/x
  3. Step 3: Cross multiply
    86,010.72x = 118,702 × 50,203.04
  4. Step 4: Simplify right side
    86,010.72x = 5,959,201,254.08
  5. Step 5: Solve for x
    x = 5,959,201,254.08/86,010.72
  6. Step 6: Final answer
    x = 69,284.40

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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.