Home / 91,840.37-126,739.62-51,554.21

Finding the Fourth Proportional to 91,840.37, 126,739.62 and 51,554.21

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Solution

The fourth proportional to 91,840.37, 126,739.62 and 51,554.21 is: 71,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,840.37 : 126,739.62 = 51,554.21 : x
  2. Step 2: Convert to fraction form
    91,840.37/126,739.62 = 51,554.21/x
  3. Step 3: Cross multiply
    91,840.37x = 126,739.62 × 51,554.21
  4. Step 4: Simplify right side
    91,840.37x = 6,533,960,351.10
  5. Step 5: Solve for x
    x = 6,533,960,351.10/91,840.37
  6. Step 6: Final answer
    x = 71,144.76

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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.