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Finding the Fourth Proportional to 73,446.90, 109,999.48 and 71,426.58

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Solution

The fourth proportional to 73,446.90, 109,999.48 and 71,426.58 is: 106,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,446.90 : 109,999.48 = 71,426.58 : x
  2. Step 2: Convert to fraction form
    73,446.90/109,999.48 = 71,426.58/x
  3. Step 3: Cross multiply
    73,446.90x = 109,999.48 × 71,426.58
  4. Step 4: Simplify right side
    73,446.90x = 7,856,886,658.18
  5. Step 5: Solve for x
    x = 7,856,886,658.18/73,446.90
  6. Step 6: Final answer
    x = 106,973.70

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1.5x scale

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.