Home / 86,790.51-119,765.25-48,543.43

Finding the Fourth Proportional to 86,790.51, 119,765.25 and 48,543.43

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Solution

The fourth proportional to 86,790.51, 119,765.25 and 48,543.43 is: 66,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,790.51 : 119,765.25 = 48,543.43 : x
  2. Step 2: Convert to fraction form
    86,790.51/119,765.25 = 48,543.43/x
  3. Step 3: Cross multiply
    86,790.51x = 119,765.25 × 48,543.43
  4. Step 4: Simplify right side
    86,790.51x = 5,813,816,361.55
  5. Step 5: Solve for x
    x = 5,813,816,361.55/86,790.51
  6. Step 6: Final answer
    x = 66,986.77

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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.