Home / 84,979.53-117,163.40-53,136.81

Finding the Fourth Proportional to 84,979.53, 117,163.40 and 53,136.81

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Solution

The fourth proportional to 84,979.53, 117,163.40 and 53,136.81 is: 73,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,979.53 : 117,163.40 = 53,136.81 : x
  2. Step 2: Convert to fraction form
    84,979.53/117,163.40 = 53,136.81/x
  3. Step 3: Cross multiply
    84,979.53x = 117,163.40 × 53,136.81
  4. Step 4: Simplify right side
    84,979.53x = 6,225,689,059.07
  5. Step 5: Solve for x
    x = 6,225,689,059.07/84,979.53
  6. Step 6: Final answer
    x = 73,261.04

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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.