Home / 81,803.77-112,887.70-45,505.04

Finding the Fourth Proportional to 81,803.77, 112,887.70 and 45,505.04

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Solution

The fourth proportional to 81,803.77, 112,887.70 and 45,505.04 is: 62,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,803.77 : 112,887.70 = 45,505.04 : x
  2. Step 2: Convert to fraction form
    81,803.77/112,887.70 = 45,505.04/x
  3. Step 3: Cross multiply
    81,803.77x = 112,887.70 × 45,505.04
  4. Step 4: Simplify right side
    81,803.77x = 5,136,958,625.81
  5. Step 5: Solve for x
    x = 5,136,958,625.81/81,803.77
  6. Step 6: Final answer
    x = 62,796.11

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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.