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Finding the Fourth Proportional to 45,293.94, 67,968.48 and 28,630.98

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Solution

The fourth proportional to 45,293.94, 67,968.48 and 28,630.98 is: 42,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,293.94 : 67,968.48 = 28,630.98 : x
  2. Step 2: Convert to fraction form
    45,293.94/67,968.48 = 28,630.98/x
  3. Step 3: Cross multiply
    45,293.94x = 67,968.48 × 28,630.98
  4. Step 4: Simplify right side
    45,293.94x = 1,946,004,191.51
  5. Step 5: Solve for x
    x = 1,946,004,191.51/45,293.94
  6. Step 6: Final answer
    x = 42,963.90

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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.