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Finding the Fourth Proportional to 48,455.66, 72,702.02 and 18,894.11

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Solution

The fourth proportional to 48,455.66, 72,702.02 and 18,894.11 is: 28,348.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,455.66 : 72,702.02 = 18,894.11 : x
  2. Step 2: Convert to fraction form
    48,455.66/72,702.02 = 18,894.11/x
  3. Step 3: Cross multiply
    48,455.66x = 72,702.02 × 18,894.11
  4. Step 4: Simplify right side
    48,455.66x = 1,373,639,505.12
  5. Step 5: Solve for x
    x = 1,373,639,505.12/48,455.66
  6. Step 6: Final answer
    x = 28,348.38

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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.