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Finding the Fourth Proportional to 68,567.52, 102,836.88 and 19,308

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Solution

The fourth proportional to 68,567.52, 102,836.88 and 19,308 is: 28,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,567.52 : 102,836.88 = 19,308 : x
  2. Step 2: Convert to fraction form
    68,567.52/102,836.88 = 19,308/x
  3. Step 3: Cross multiply
    68,567.52x = 102,836.88 × 19,308
  4. Step 4: Simplify right side
    68,567.52x = 1,985,574,479.04
  5. Step 5: Solve for x
    x = 1,985,574,479.04/68,567.52
  6. Step 6: Final answer
    x = 28,957.95

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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.