Home / 91,563.48-126,360-51,277.05

Finding the Fourth Proportional to 91,563.48, 126,360 and 51,277.05

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Solution

The fourth proportional to 91,563.48, 126,360 and 51,277.05 is: 70,763.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,563.48 : 126,360 = 51,277.05 : x
  2. Step 2: Convert to fraction form
    91,563.48/126,360 = 51,277.05/x
  3. Step 3: Cross multiply
    91,563.48x = 126,360 × 51,277.05
  4. Step 4: Simplify right side
    91,563.48x = 6,479,368,038
  5. Step 5: Solve for x
    x = 6,479,368,038/91,563.48
  6. Step 6: Final answer
    x = 70,763.67

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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.