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Finding the Fourth Proportional to 93,746, 140,619 and 28,082

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Solution

The fourth proportional to 93,746, 140,619 and 28,082 is: 42,123

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,746 : 140,619 = 28,082 : x
  2. Step 2: Convert to fraction form
    93,746/140,619 = 28,082/x
  3. Step 3: Cross multiply
    93,746x = 140,619 × 28,082
  4. Step 4: Simplify right side
    93,746x = 3,948,862,758
  5. Step 5: Solve for x
    x = 3,948,862,758/93,746
  6. Step 6: Final answer
    x = 42,123

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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.