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Finding the Fourth Proportional to 65,779.98, 98,694.66 and 39,503.58

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Solution

The fourth proportional to 65,779.98, 98,694.66 and 39,503.58 is: 59,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,779.98 : 98,694.66 = 39,503.58 : x
  2. Step 2: Convert to fraction form
    65,779.98/98,694.66 = 39,503.58/x
  3. Step 3: Cross multiply
    65,779.98x = 98,694.66 × 39,503.58
  4. Step 4: Simplify right side
    65,779.98x = 3,898,792,396.88
  5. Step 5: Solve for x
    x = 3,898,792,396.88/65,779.98
  6. Step 6: Final answer
    x = 59,270.20

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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.