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Finding the Fourth Proportional to 64,228.60, 96,352.12 and 19,858.80

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Solution

The fourth proportional to 64,228.60, 96,352.12 and 19,858.80 is: 29,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,228.60 : 96,352.12 = 19,858.80 : x
  2. Step 2: Convert to fraction form
    64,228.60/96,352.12 = 19,858.80/x
  3. Step 3: Cross multiply
    64,228.60x = 96,352.12 × 19,858.80
  4. Step 4: Simplify right side
    64,228.60x = 1,913,437,480.66
  5. Step 5: Solve for x
    x = 1,913,437,480.66/64,228.60
  6. Step 6: Final answer
    x = 29,791.05

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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.