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Finding the Fourth Proportional to 81,505.01, 122,256.53 and 22,340.63

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Solution

The fourth proportional to 81,505.01, 122,256.53 and 22,340.63 is: 33,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505.01 : 122,256.53 = 22,340.63 : x
  2. Step 2: Convert to fraction form
    81,505.01/122,256.53 = 22,340.63/x
  3. Step 3: Cross multiply
    81,505.01x = 122,256.53 × 22,340.63
  4. Step 4: Simplify right side
    81,505.01x = 2,731,287,790.11
  5. Step 5: Solve for x
    x = 2,731,287,790.11/81,505.01
  6. Step 6: Final answer
    x = 33,510.67

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1.5x scale

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.