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Finding the Fourth Proportional to 72,210.85, 108,225.90 and 34,760.89

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Solution

The fourth proportional to 72,210.85, 108,225.90 and 34,760.89 is: 52,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,210.85 : 108,225.90 = 34,760.89 : x
  2. Step 2: Convert to fraction form
    72,210.85/108,225.90 = 34,760.89/x
  3. Step 3: Cross multiply
    72,210.85x = 108,225.90 × 34,760.89
  4. Step 4: Simplify right side
    72,210.85x = 3,762,028,605.05
  5. Step 5: Solve for x
    x = 3,762,028,605.05/72,210.85
  6. Step 6: Final answer
    x = 52,097.83

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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.