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Finding the Fourth Proportional to 81,035.56, 111,828.84 and 45,225.16

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Solution

The fourth proportional to 81,035.56, 111,828.84 and 45,225.16 is: 62,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,035.56 : 111,828.84 = 45,225.16 : x
  2. Step 2: Convert to fraction form
    81,035.56/111,828.84 = 45,225.16/x
  3. Step 3: Cross multiply
    81,035.56x = 111,828.84 × 45,225.16
  4. Step 4: Simplify right side
    81,035.56x = 5,057,477,181.61
  5. Step 5: Solve for x
    x = 5,057,477,181.61/81,035.56
  6. Step 6: Final answer
    x = 62,410.59

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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.