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Finding the Fourth Proportional to 69,583.40, 96,029.84 and 39,368.72

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Solution

The fourth proportional to 69,583.40, 96,029.84 and 39,368.72 is: 54,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,583.40 : 96,029.84 = 39,368.72 : x
  2. Step 2: Convert to fraction form
    69,583.40/96,029.84 = 39,368.72/x
  3. Step 3: Cross multiply
    69,583.40x = 96,029.84 × 39,368.72
  4. Step 4: Simplify right side
    69,583.40x = 3,780,571,882.60
  5. Step 5: Solve for x
    x = 3,780,571,882.60/69,583.40
  6. Step 6: Final answer
    x = 54,331.52

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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.