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Finding the Fourth Proportional to 68,281.79, 102,421.46 and 26,150.45

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Solution

The fourth proportional to 68,281.79, 102,421.46 and 26,150.45 is: 39,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,281.79 : 102,421.46 = 26,150.45 : x
  2. Step 2: Convert to fraction form
    68,281.79/102,421.46 = 26,150.45/x
  3. Step 3: Cross multiply
    68,281.79x = 102,421.46 × 26,150.45
  4. Step 4: Simplify right side
    68,281.79x = 2,678,366,821.93
  5. Step 5: Solve for x
    x = 2,678,366,821.93/68,281.79
  6. Step 6: Final answer
    x = 39,225.20

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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.