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Finding the Fourth Proportional to 68,394.60, 94,386.12 and 42,902.04

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Solution

The fourth proportional to 68,394.60, 94,386.12 and 42,902.04 is: 59,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,394.60 : 94,386.12 = 42,902.04 : x
  2. Step 2: Convert to fraction form
    68,394.60/94,386.12 = 42,902.04/x
  3. Step 3: Cross multiply
    68,394.60x = 94,386.12 × 42,902.04
  4. Step 4: Simplify right side
    68,394.60x = 4,049,357,095.68
  5. Step 5: Solve for x
    x = 4,049,357,095.68/68,394.60
  6. Step 6: Final answer
    x = 59,205.80

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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.