Home / 91,245.24-125,739-69,759.25

Finding the Fourth Proportional to 91,245.24, 125,739 and 69,759.25

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Solution

The fourth proportional to 91,245.24, 125,739 and 69,759.25 is: 96,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,245.24 : 125,739 = 69,759.25 : x
  2. Step 2: Convert to fraction form
    91,245.24/125,739 = 69,759.25/x
  3. Step 3: Cross multiply
    91,245.24x = 125,739 × 69,759.25
  4. Step 4: Simplify right side
    91,245.24x = 8,771,458,021.40
  5. Step 5: Solve for x
    x = 8,771,458,021.40/91,245.24
  6. Step 6: Final answer
    x = 96,130.58

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1.5x scale

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.