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Finding the Fourth Proportional to 85,803.30, 118,409.34 and 47,563.26

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Solution

The fourth proportional to 85,803.30, 118,409.34 and 47,563.26 is: 65,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,803.30 : 118,409.34 = 47,563.26 : x
  2. Step 2: Convert to fraction form
    85,803.30/118,409.34 = 47,563.26/x
  3. Step 3: Cross multiply
    85,803.30x = 118,409.34 × 47,563.26
  4. Step 4: Simplify right side
    85,803.30x = 5,631,934,224.85
  5. Step 5: Solve for x
    x = 5,631,934,224.85/85,803.30
  6. Step 6: Final answer
    x = 65,637.73

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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.