Home / 81,337.24-112,315.44-51,172.84

Finding the Fourth Proportional to 81,337.24, 112,315.44 and 51,172.84

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Solution

The fourth proportional to 81,337.24, 112,315.44 and 51,172.84 is: 70,662.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,337.24 : 112,315.44 = 51,172.84 : x
  2. Step 2: Convert to fraction form
    81,337.24/112,315.44 = 51,172.84/x
  3. Step 3: Cross multiply
    81,337.24x = 112,315.44 × 51,172.84
  4. Step 4: Simplify right side
    81,337.24x = 5,747,500,040.65
  5. Step 5: Solve for x
    x = 5,747,500,040.65/81,337.24
  6. Step 6: Final answer
    x = 70,662.59

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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.