Home / 145,019.72-217,504.92-39,814.04

Finding the Fourth Proportional to 145,019.72, 217,504.92 and 39,814.04

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Solution

The fourth proportional to 145,019.72, 217,504.92 and 39,814.04 is: 59,714.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,019.72 : 217,504.92 = 39,814.04 : x
  2. Step 2: Convert to fraction form
    145,019.72/217,504.92 = 39,814.04/x
  3. Step 3: Cross multiply
    145,019.72x = 217,504.92 × 39,814.04
  4. Step 4: Simplify right side
    145,019.72x = 8,659,749,585.08
  5. Step 5: Solve for x
    x = 8,659,749,585.08/145,019.72
  6. Step 6: Final answer
    x = 59,714.29

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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.