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Finding the Fourth Proportional to 68,590.05, 94,648.87 and 38,373

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Solution

The fourth proportional to 68,590.05, 94,648.87 and 38,373 is: 52,951.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,590.05 : 94,648.87 = 38,373 : x
  2. Step 2: Convert to fraction form
    68,590.05/94,648.87 = 38,373/x
  3. Step 3: Cross multiply
    68,590.05x = 94,648.87 × 38,373
  4. Step 4: Simplify right side
    68,590.05x = 3,631,961,088.51
  5. Step 5: Solve for x
    x = 3,631,961,088.51/68,590.05
  6. Step 6: Final answer
    x = 52,951.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.