Home / 77,205.27-106,534.32-43,215.66

Finding the Fourth Proportional to 77,205.27, 106,534.32 and 43,215.66

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Solution

The fourth proportional to 77,205.27, 106,534.32 and 43,215.66 is: 59,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,205.27 : 106,534.32 = 43,215.66 : x
  2. Step 2: Convert to fraction form
    77,205.27/106,534.32 = 43,215.66/x
  3. Step 3: Cross multiply
    77,205.27x = 106,534.32 × 43,215.66
  4. Step 4: Simplify right side
    77,205.27x = 4,603,950,951.45
  5. Step 5: Solve for x
    x = 4,603,950,951.45/77,205.27
  6. Step 6: Final answer
    x = 59,632.60

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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.