Home / 66,146.71-99,225.99-18,762.27

Finding the Fourth Proportional to 66,146.71, 99,225.99 and 18,762.27

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Solution

The fourth proportional to 66,146.71, 99,225.99 and 18,762.27 is: 28,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.71 : 99,225.99 = 18,762.27 : x
  2. Step 2: Convert to fraction form
    66,146.71/99,225.99 = 18,762.27/x
  3. Step 3: Cross multiply
    66,146.71x = 99,225.99 × 18,762.27
  4. Step 4: Simplify right side
    66,146.71x = 1,861,704,815.40
  5. Step 5: Solve for x
    x = 1,861,704,815.40/66,146.71
  6. Step 6: Final answer
    x = 28,145.09

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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.