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Finding the Fourth Proportional to 78,692, 118,061.12 and 23,289.44

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Solution

The fourth proportional to 78,692, 118,061.12 and 23,289.44 is: 34,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,692 : 118,061.12 = 23,289.44 : x
  2. Step 2: Convert to fraction form
    78,692/118,061.12 = 23,289.44/x
  3. Step 3: Cross multiply
    78,692x = 118,061.12 × 23,289.44
  4. Step 4: Simplify right side
    78,692x = 2,749,577,370.57
  5. Step 5: Solve for x
    x = 2,749,577,370.57/78,692
  6. Step 6: Final answer
    x = 34,941.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.