Home / 85,561.12-118,069.69-47,318.43

Finding the Fourth Proportional to 85,561.12, 118,069.69 and 47,318.43

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Solution

The fourth proportional to 85,561.12, 118,069.69 and 47,318.43 is: 65,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,561.12 : 118,069.69 = 47,318.43 : x
  2. Step 2: Convert to fraction form
    85,561.12/118,069.69 = 47,318.43/x
  3. Step 3: Cross multiply
    85,561.12x = 118,069.69 × 47,318.43
  4. Step 4: Simplify right side
    85,561.12x = 5,586,872,361.39
  5. Step 5: Solve for x
    x = 5,586,872,361.39/85,561.12
  6. Step 6: Final answer
    x = 65,296.86

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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.