Home / 77,369.32-106,778.52-43,386.97

Finding the Fourth Proportional to 77,369.32, 106,778.52 and 43,386.97

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Solution

The fourth proportional to 77,369.32, 106,778.52 and 43,386.97 is: 59,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,369.32 : 106,778.52 = 43,386.97 : x
  2. Step 2: Convert to fraction form
    77,369.32/106,778.52 = 43,386.97/x
  3. Step 3: Cross multiply
    77,369.32x = 106,778.52 × 43,386.97
  4. Step 4: Simplify right side
    77,369.32x = 4,632,796,443.88
  5. Step 5: Solve for x
    x = 4,632,796,443.88/77,369.32
  6. Step 6: Final answer
    x = 59,878.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.