Home / 81,504.16-112,471.68-47,968

Finding the Fourth Proportional to 81,504.16, 112,471.68 and 47,968

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Solution

The fourth proportional to 81,504.16, 112,471.68 and 47,968 is: 66,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,504.16 : 112,471.68 = 47,968 : x
  2. Step 2: Convert to fraction form
    81,504.16/112,471.68 = 47,968/x
  3. Step 3: Cross multiply
    81,504.16x = 112,471.68 × 47,968
  4. Step 4: Simplify right side
    81,504.16x = 5,395,041,546.24
  5. Step 5: Solve for x
    x = 5,395,041,546.24/81,504.16
  6. Step 6: Final answer
    x = 66,193.45

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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.