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Finding the Fourth Proportional to 65,040.69, 97,605.38 and 29,980.65

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Solution

The fourth proportional to 65,040.69, 97,605.38 and 29,980.65 is: 44,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,040.69 : 97,605.38 = 29,980.65 : x
  2. Step 2: Convert to fraction form
    65,040.69/97,605.38 = 29,980.65/x
  3. Step 3: Cross multiply
    65,040.69x = 97,605.38 × 29,980.65
  4. Step 4: Simplify right side
    65,040.69x = 2,926,272,735.90
  5. Step 5: Solve for x
    x = 2,926,272,735.90/65,040.69
  6. Step 6: Final answer
    x = 44,991.42

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1.5x scale

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.