Home / 74,702.91-103,086.06-42,869.73

Finding the Fourth Proportional to 74,702.91, 103,086.06 and 42,869.73

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Solution

The fourth proportional to 74,702.91, 103,086.06 and 42,869.73 is: 59,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,702.91 : 103,086.06 = 42,869.73 : x
  2. Step 2: Convert to fraction form
    74,702.91/103,086.06 = 42,869.73/x
  3. Step 3: Cross multiply
    74,702.91x = 103,086.06 × 42,869.73
  4. Step 4: Simplify right side
    74,702.91x = 4,419,271,558.96
  5. Step 5: Solve for x
    x = 4,419,271,558.96/74,702.91
  6. Step 6: Final answer
    x = 59,157.96

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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.