Home / 91,420.46-126,147.62-51,132.14

Finding the Fourth Proportional to 91,420.46, 126,147.62 and 51,132.14

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Solution

The fourth proportional to 91,420.46, 126,147.62 and 51,132.14 is: 70,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,420.46 : 126,147.62 = 51,132.14 : x
  2. Step 2: Convert to fraction form
    91,420.46/126,147.62 = 51,132.14/x
  3. Step 3: Cross multiply
    91,420.46x = 126,147.62 × 51,132.14
  4. Step 4: Simplify right side
    91,420.46x = 6,450,197,766.51
  5. Step 5: Solve for x
    x = 6,450,197,766.51/91,420.46
  6. Step 6: Final answer
    x = 70,555.30

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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.