Home / 71,286.77-98,374.55-39,454.98

Finding the Fourth Proportional to 71,286.77, 98,374.55 and 39,454.98

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Solution

The fourth proportional to 71,286.77, 98,374.55 and 39,454.98 is: 54,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,286.77 : 98,374.55 = 39,454.98 : x
  2. Step 2: Convert to fraction form
    71,286.77/98,374.55 = 39,454.98/x
  3. Step 3: Cross multiply
    71,286.77x = 98,374.55 × 39,454.98
  4. Step 4: Simplify right side
    71,286.77x = 3,881,365,705.48
  5. Step 5: Solve for x
    x = 3,881,365,705.48/71,286.77
  6. Step 6: Final answer
    x = 54,447.21

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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.