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Finding the Fourth Proportional to 70,830.80, 106,250.04 and 26,469.20

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Solution

The fourth proportional to 70,830.80, 106,250.04 and 26,469.20 is: 39,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,830.80 : 106,250.04 = 26,469.20 : x
  2. Step 2: Convert to fraction form
    70,830.80/106,250.04 = 26,469.20/x
  3. Step 3: Cross multiply
    70,830.80x = 106,250.04 × 26,469.20
  4. Step 4: Simplify right side
    70,830.80x = 2,812,353,558.77
  5. Step 5: Solve for x
    x = 2,812,353,558.77/70,830.80
  6. Step 6: Final answer
    x = 39,705.23

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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.