Home / 71,629.63-107,465.91-28,913.07

Finding the Fourth Proportional to 71,629.63, 107,465.91 and 28,913.07

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Solution

The fourth proportional to 71,629.63, 107,465.91 and 28,913.07 is: 43,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,629.63 : 107,465.91 = 28,913.07 : x
  2. Step 2: Convert to fraction form
    71,629.63/107,465.91 = 28,913.07/x
  3. Step 3: Cross multiply
    71,629.63x = 107,465.91 × 28,913.07
  4. Step 4: Simplify right side
    71,629.63x = 3,107,168,841.11
  5. Step 5: Solve for x
    x = 3,107,168,841.11/71,629.63
  6. Step 6: Final answer
    x = 43,378.26

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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.