Home / 53,136.36-79,706.52-18,071.64

Finding the Fourth Proportional to 53,136.36, 79,706.52 and 18,071.64

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Solution

The fourth proportional to 53,136.36, 79,706.52 and 18,071.64 is: 27,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,136.36 : 79,706.52 = 18,071.64 : x
  2. Step 2: Convert to fraction form
    53,136.36/79,706.52 = 18,071.64/x
  3. Step 3: Cross multiply
    53,136.36x = 79,706.52 × 18,071.64
  4. Step 4: Simplify right side
    53,136.36x = 1,440,427,535.09
  5. Step 5: Solve for x
    x = 1,440,427,535.09/53,136.36
  6. Step 6: Final answer
    x = 27,108.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.