Home / 71,428.35-98,564.49-39,594.54

Finding the Fourth Proportional to 71,428.35, 98,564.49 and 39,594.54

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Solution

The fourth proportional to 71,428.35, 98,564.49 and 39,594.54 is: 54,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.35 : 98,564.49 = 39,594.54 : x
  2. Step 2: Convert to fraction form
    71,428.35/98,564.49 = 39,594.54/x
  3. Step 3: Cross multiply
    71,428.35x = 98,564.49 × 39,594.54
  4. Step 4: Simplify right side
    71,428.35x = 3,902,615,641.88
  5. Step 5: Solve for x
    x = 3,902,615,641.88/71,428.35
  6. Step 6: Final answer
    x = 54,636.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.