Home / 66,309.29-91,475.93-39,436.73

Finding the Fourth Proportional to 66,309.29, 91,475.93 and 39,436.73

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Solution

The fourth proportional to 66,309.29, 91,475.93 and 39,436.73 is: 54,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.29 : 91,475.93 = 39,436.73 : x
  2. Step 2: Convert to fraction form
    66,309.29/91,475.93 = 39,436.73/x
  3. Step 3: Cross multiply
    66,309.29x = 91,475.93 × 39,436.73
  4. Step 4: Simplify right side
    66,309.29x = 3,607,511,355.73
  5. Step 5: Solve for x
    x = 3,607,511,355.73/66,309.29
  6. Step 6: Final answer
    x = 54,404.31

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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.