Home / 77,688.87-116,536.95-27,792.60

Finding the Fourth Proportional to 77,688.87, 116,536.95 and 27,792.60

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Solution

The fourth proportional to 77,688.87, 116,536.95 and 27,792.60 is: 41,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,688.87 : 116,536.95 = 27,792.60 : x
  2. Step 2: Convert to fraction form
    77,688.87/116,536.95 = 27,792.60/x
  3. Step 3: Cross multiply
    77,688.87x = 116,536.95 × 27,792.60
  4. Step 4: Simplify right side
    77,688.87x = 3,238,864,836.57
  5. Step 5: Solve for x
    x = 3,238,864,836.57/77,688.87
  6. Step 6: Final answer
    x = 41,690.20

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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.