Home / 79,019.91-118,516.64-26,429.22

Finding the Fourth Proportional to 79,019.91, 118,516.64 and 26,429.22

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Solution

The fourth proportional to 79,019.91, 118,516.64 and 26,429.22 is: 39,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,019.91 : 118,516.64 = 26,429.22 : x
  2. Step 2: Convert to fraction form
    79,019.91/118,516.64 = 26,429.22/x
  3. Step 3: Cross multiply
    79,019.91x = 118,516.64 × 26,429.22
  4. Step 4: Simplify right side
    79,019.91x = 3,132,302,220.07
  5. Step 5: Solve for x
    x = 3,132,302,220.07/79,019.91
  6. Step 6: Final answer
    x = 39,639.41

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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.