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Finding the Fourth Proportional to 72,301.40, 108,452.10 and 36,762.65

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Solution

The fourth proportional to 72,301.40, 108,452.10 and 36,762.65 is: 55,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,301.40 : 108,452.10 = 36,762.65 : x
  2. Step 2: Convert to fraction form
    72,301.40/108,452.10 = 36,762.65/x
  3. Step 3: Cross multiply
    72,301.40x = 108,452.10 × 36,762.65
  4. Step 4: Simplify right side
    72,301.40x = 3,986,986,594.07
  5. Step 5: Solve for x
    x = 3,986,986,594.07/72,301.40
  6. Step 6: Final answer
    x = 55,143.98

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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.