Home / 91,438.46-126,180-51,144.45

Finding the Fourth Proportional to 91,438.46, 126,180 and 51,144.45

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Solution

The fourth proportional to 91,438.46, 126,180 and 51,144.45 is: 70,576.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,438.46 : 126,180 = 51,144.45 : x
  2. Step 2: Convert to fraction form
    91,438.46/126,180 = 51,144.45/x
  3. Step 3: Cross multiply
    91,438.46x = 126,180 × 51,144.45
  4. Step 4: Simplify right side
    91,438.46x = 6,453,406,701
  5. Step 5: Solve for x
    x = 6,453,406,701/91,438.46
  6. Step 6: Final answer
    x = 70,576.50

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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.