Home / 91,839.42-126,740.25-51,556.14

Finding the Fourth Proportional to 91,839.42, 126,740.25 and 51,556.14

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Solution

The fourth proportional to 91,839.42, 126,740.25 and 51,556.14 is: 71,148.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,839.42 : 126,740.25 = 51,556.14 : x
  2. Step 2: Convert to fraction form
    91,839.42/126,740.25 = 51,556.14/x
  3. Step 3: Cross multiply
    91,839.42x = 126,740.25 × 51,556.14
  4. Step 4: Simplify right side
    91,839.42x = 6,534,238,072.64
  5. Step 5: Solve for x
    x = 6,534,238,072.64/91,839.42
  6. Step 6: Final answer
    x = 71,148.51

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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.