Home / 80,935.04-111,096.13-71,782.45

Finding the Fourth Proportional to 80,935.04, 111,096.13 and 71,782.45

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Solution

The fourth proportional to 80,935.04, 111,096.13 and 71,782.45 is: 98,532.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,935.04 : 111,096.13 = 71,782.45 : x
  2. Step 2: Convert to fraction form
    80,935.04/111,096.13 = 71,782.45/x
  3. Step 3: Cross multiply
    80,935.04x = 111,096.13 × 71,782.45
  4. Step 4: Simplify right side
    80,935.04x = 7,974,752,396.92
  5. Step 5: Solve for x
    x = 7,974,752,396.92/80,935.04
  6. Step 6: Final answer
    x = 98,532.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.