Home / 77,689.17-116,516.90-27,772.74

Finding the Fourth Proportional to 77,689.17, 116,516.90 and 27,772.74

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Solution

The fourth proportional to 77,689.17, 116,516.90 and 27,772.74 is: 41,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,689.17 : 116,516.90 = 27,772.74 : x
  2. Step 2: Convert to fraction form
    77,689.17/116,516.90 = 27,772.74/x
  3. Step 3: Cross multiply
    77,689.17x = 116,516.90 × 27,772.74
  4. Step 4: Simplify right side
    77,689.17x = 3,235,993,638.74
  5. Step 5: Solve for x
    x = 3,235,993,638.74/77,689.17
  6. Step 6: Final answer
    x = 41,653.09

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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.