Home / 77,521.10-106,977.75-43,529.86

Finding the Fourth Proportional to 77,521.10, 106,977.75 and 43,529.86

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Solution

The fourth proportional to 77,521.10, 106,977.75 and 43,529.86 is: 60,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,521.10 : 106,977.75 = 43,529.86 : x
  2. Step 2: Convert to fraction form
    77,521.10/106,977.75 = 43,529.86/x
  3. Step 3: Cross multiply
    77,521.10x = 106,977.75 × 43,529.86
  4. Step 4: Simplify right side
    77,521.10x = 4,656,726,480.62
  5. Step 5: Solve for x
    x = 4,656,726,480.62/77,521.10
  6. Step 6: Final answer
    x = 60,070.44

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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.