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Finding the Fourth Proportional to 78,852, 108,787.23 and 60,708.24

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Solution

The fourth proportional to 78,852, 108,787.23 and 60,708.24 is: 83,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,852 : 108,787.23 = 60,708.24 : x
  2. Step 2: Convert to fraction form
    78,852/108,787.23 = 60,708.24/x
  3. Step 3: Cross multiply
    78,852x = 108,787.23 × 60,708.24
  4. Step 4: Simplify right side
    78,852x = 6,604,281,267.78
  5. Step 5: Solve for x
    x = 6,604,281,267.78/78,852
  6. Step 6: Final answer
    x = 83,755.41

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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.