Home / 71,669.89-98,895.85-39,399.19

Finding the Fourth Proportional to 71,669.89, 98,895.85 and 39,399.19

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Solution

The fourth proportional to 71,669.89, 98,895.85 and 39,399.19 is: 54,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,669.89 : 98,895.85 = 39,399.19 : x
  2. Step 2: Convert to fraction form
    71,669.89/98,895.85 = 39,399.19/x
  3. Step 3: Cross multiply
    71,669.89x = 98,895.85 × 39,399.19
  4. Step 4: Simplify right side
    71,669.89x = 3,896,415,889.88
  5. Step 5: Solve for x
    x = 3,896,415,889.88/71,669.89
  6. Step 6: Final answer
    x = 54,366.15

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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.