Home / 91,556.68-126,361.02-66,145.26

Finding the Fourth Proportional to 91,556.68, 126,361.02 and 66,145.26

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Solution

The fourth proportional to 91,556.68, 126,361.02 and 66,145.26 is: 91,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,556.68 : 126,361.02 = 66,145.26 : x
  2. Step 2: Convert to fraction form
    91,556.68/126,361.02 = 66,145.26/x
  3. Step 3: Cross multiply
    91,556.68x = 126,361.02 × 66,145.26
  4. Step 4: Simplify right side
    91,556.68x = 8,358,182,521.77
  5. Step 5: Solve for x
    x = 8,358,182,521.77/91,556.68
  6. Step 6: Final answer
    x = 91,289.71

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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.