Home / 91,674.56-126,516.74-51,388.34

Finding the Fourth Proportional to 91,674.56, 126,516.74 and 51,388.34

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Solution

The fourth proportional to 91,674.56, 126,516.74 and 51,388.34 is: 70,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,674.56 : 126,516.74 = 51,388.34 : x
  2. Step 2: Convert to fraction form
    91,674.56/126,516.74 = 51,388.34/x
  3. Step 3: Cross multiply
    91,674.56x = 126,516.74 × 51,388.34
  4. Step 4: Simplify right side
    91,674.56x = 6,501,485,250.81
  5. Step 5: Solve for x
    x = 6,501,485,250.81/91,674.56
  6. Step 6: Final answer
    x = 70,919.19

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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.