Home / 71,020.67-98,009.06-39,190.70

Finding the Fourth Proportional to 71,020.67, 98,009.06 and 39,190.70

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Solution

The fourth proportional to 71,020.67, 98,009.06 and 39,190.70 is: 54,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,020.67 : 98,009.06 = 39,190.70 : x
  2. Step 2: Convert to fraction form
    71,020.67/98,009.06 = 39,190.70/x
  3. Step 3: Cross multiply
    71,020.67x = 98,009.06 × 39,190.70
  4. Step 4: Simplify right side
    71,020.67x = 3,841,043,716.81
  5. Step 5: Solve for x
    x = 3,841,043,716.81/71,020.67
  6. Step 6: Final answer
    x = 54,083.47

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1.5x scale

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.