Home / 91,009.35-136,222.43-48,785.67

Finding the Fourth Proportional to 91,009.35, 136,222.43 and 48,785.67

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Solution

The fourth proportional to 91,009.35, 136,222.43 and 48,785.67 is: 73,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,009.35 : 136,222.43 = 48,785.67 : x
  2. Step 2: Convert to fraction form
    91,009.35/136,222.43 = 48,785.67/x
  3. Step 3: Cross multiply
    91,009.35x = 136,222.43 × 48,785.67
  4. Step 4: Simplify right side
    91,009.35x = 6,645,702,272.65
  5. Step 5: Solve for x
    x = 6,645,702,272.65/91,009.35
  6. Step 6: Final answer
    x = 73,022.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.