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Finding the Fourth Proportional to 67,622.65, 93,289.83 and 40,749.89

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Solution

The fourth proportional to 67,622.65, 93,289.83 and 40,749.89 is: 56,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,622.65 : 93,289.83 = 40,749.89 : x
  2. Step 2: Convert to fraction form
    67,622.65/93,289.83 = 40,749.89/x
  3. Step 3: Cross multiply
    67,622.65x = 93,289.83 × 40,749.89
  4. Step 4: Simplify right side
    67,622.65x = 3,801,549,691.36
  5. Step 5: Solve for x
    x = 3,801,549,691.36/67,622.65
  6. Step 6: Final answer
    x = 56,217.11

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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.