Home / 91,840.80-126,740.25-51,554.64

Finding the Fourth Proportional to 91,840.80, 126,740.25 and 51,554.64

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Solution

The fourth proportional to 91,840.80, 126,740.25 and 51,554.64 is: 71,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,840.80 : 126,740.25 = 51,554.64 : x
  2. Step 2: Convert to fraction form
    91,840.80/126,740.25 = 51,554.64/x
  3. Step 3: Cross multiply
    91,840.80x = 126,740.25 × 51,554.64
  4. Step 4: Simplify right side
    91,840.80x = 6,534,048,021.34
  5. Step 5: Solve for x
    x = 6,534,048,021.34/91,840.80
  6. Step 6: Final answer
    x = 71,145.37

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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.