Home / 277,719.87-416,579.81-78,032.19

Finding the Fourth Proportional to 277,719.87, 416,579.81 and 78,032.19

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Solution

The fourth proportional to 277,719.87, 416,579.81 and 78,032.19 is: 117,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,719.87 : 416,579.81 = 78,032.19 : x
  2. Step 2: Convert to fraction form
    277,719.87/416,579.81 = 78,032.19/x
  3. Step 3: Cross multiply
    277,719.87x = 416,579.81 × 78,032.19
  4. Step 4: Simplify right side
    277,719.87x = 32,506,634,493.92
  5. Step 5: Solve for x
    x = 32,506,634,493.92/277,719.87
  6. Step 6: Final answer
    x = 117,048.29

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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.