Home / 71,014.47-97,999.71-39,183.21

Finding the Fourth Proportional to 71,014.47, 97,999.71 and 39,183.21

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Solution

The fourth proportional to 71,014.47, 97,999.71 and 39,183.21 is: 54,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,014.47 : 97,999.71 = 39,183.21 : x
  2. Step 2: Convert to fraction form
    71,014.47/97,999.71 = 39,183.21/x
  3. Step 3: Cross multiply
    71,014.47x = 97,999.71 × 39,183.21
  4. Step 4: Simplify right side
    71,014.47x = 3,839,943,216.87
  5. Step 5: Solve for x
    x = 3,839,943,216.87/71,014.47
  6. Step 6: Final answer
    x = 54,072.69

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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.