Home / 81,361.18-112,273.11-45,550.86

Finding the Fourth Proportional to 81,361.18, 112,273.11 and 45,550.86

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Solution

The fourth proportional to 81,361.18, 112,273.11 and 45,550.86 is: 62,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.18 : 112,273.11 = 45,550.86 : x
  2. Step 2: Convert to fraction form
    81,361.18/112,273.11 = 45,550.86/x
  3. Step 3: Cross multiply
    81,361.18x = 112,273.11 × 45,550.86
  4. Step 4: Simplify right side
    81,361.18x = 5,114,136,715.37
  5. Step 5: Solve for x
    x = 5,114,136,715.37/81,361.18
  6. Step 6: Final answer
    x = 62,857.21

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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.