Home / 71,511.47-98,688.06-39,683.33

Finding the Fourth Proportional to 71,511.47, 98,688.06 and 39,683.33

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Solution

The fourth proportional to 71,511.47, 98,688.06 and 39,683.33 is: 54,764.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511.47 : 98,688.06 = 39,683.33 : x
  2. Step 2: Convert to fraction form
    71,511.47/98,688.06 = 39,683.33/x
  3. Step 3: Cross multiply
    71,511.47x = 98,688.06 × 39,683.33
  4. Step 4: Simplify right side
    71,511.47x = 3,916,270,852.04
  5. Step 5: Solve for x
    x = 3,916,270,852.04/71,511.47
  6. Step 6: Final answer
    x = 54,764.23

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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.