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Finding the Fourth Proportional to 77,284.80, 106,658.88 and 43,301.28

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Solution

The fourth proportional to 77,284.80, 106,658.88 and 43,301.28 is: 59,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,284.80 : 106,658.88 = 43,301.28 : x
  2. Step 2: Convert to fraction form
    77,284.80/106,658.88 = 43,301.28/x
  3. Step 3: Cross multiply
    77,284.80x = 106,658.88 × 43,301.28
  4. Step 4: Simplify right side
    77,284.80x = 4,618,466,027.37
  5. Step 5: Solve for x
    x = 4,618,466,027.37/77,284.80
  6. Step 6: Final answer
    x = 59,759.05

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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.