Home / 91,255.04-136,968.64-46,912.88

Finding the Fourth Proportional to 91,255.04, 136,968.64 and 46,912.88

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Solution

The fourth proportional to 91,255.04, 136,968.64 and 46,912.88 is: 70,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,255.04 : 136,968.64 = 46,912.88 : x
  2. Step 2: Convert to fraction form
    91,255.04/136,968.64 = 46,912.88/x
  3. Step 3: Cross multiply
    91,255.04x = 136,968.64 × 46,912.88
  4. Step 4: Simplify right side
    91,255.04x = 6,425,593,372.08
  5. Step 5: Solve for x
    x = 6,425,593,372.08/91,255.04
  6. Step 6: Final answer
    x = 70,413.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.