Home / 77,719.42-116,566.69-27,790.20

Finding the Fourth Proportional to 77,719.42, 116,566.69 and 27,790.20

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Solution

The fourth proportional to 77,719.42, 116,566.69 and 27,790.20 is: 41,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,719.42 : 116,566.69 = 27,790.20 : x
  2. Step 2: Convert to fraction form
    77,719.42/116,566.69 = 27,790.20/x
  3. Step 3: Cross multiply
    77,719.42x = 116,566.69 × 27,790.20
  4. Step 4: Simplify right side
    77,719.42x = 3,239,411,628.44
  5. Step 5: Solve for x
    x = 3,239,411,628.44/77,719.42
  6. Step 6: Final answer
    x = 41,680.85

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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.