Home / 85,715.56-118,294.65-49,907.99

Finding the Fourth Proportional to 85,715.56, 118,294.65 and 49,907.99

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Solution

The fourth proportional to 85,715.56, 118,294.65 and 49,907.99 is: 68,877.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,715.56 : 118,294.65 = 49,907.99 : x
  2. Step 2: Convert to fraction form
    85,715.56/118,294.65 = 49,907.99/x
  3. Step 3: Cross multiply
    85,715.56x = 118,294.65 × 49,907.99
  4. Step 4: Simplify right side
    85,715.56x = 5,903,848,504.99
  5. Step 5: Solve for x
    x = 5,903,848,504.99/85,715.56
  6. Step 6: Final answer
    x = 68,877.21

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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.