Home / 81,032.75-111,836.46-45,225.06

Finding the Fourth Proportional to 81,032.75, 111,836.46 and 45,225.06

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Solution

The fourth proportional to 81,032.75, 111,836.46 and 45,225.06 is: 62,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,032.75 : 111,836.46 = 45,225.06 : x
  2. Step 2: Convert to fraction form
    81,032.75/111,836.46 = 45,225.06/x
  3. Step 3: Cross multiply
    81,032.75x = 111,836.46 × 45,225.06
  4. Step 4: Simplify right side
    81,032.75x = 5,057,811,089.61
  5. Step 5: Solve for x
    x = 5,057,811,089.61/81,032.75
  6. Step 6: Final answer
    x = 62,416.88

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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.