Home / 52,136.70-78,205.06-18,856.02

Finding the Fourth Proportional to 52,136.70, 78,205.06 and 18,856.02

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Solution

The fourth proportional to 52,136.70, 78,205.06 and 18,856.02 is: 28,284.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.70 : 78,205.06 = 18,856.02 : x
  2. Step 2: Convert to fraction form
    52,136.70/78,205.06 = 18,856.02/x
  3. Step 3: Cross multiply
    52,136.70x = 78,205.06 × 18,856.02
  4. Step 4: Simplify right side
    52,136.70x = 1,474,636,175.46
  5. Step 5: Solve for x
    x = 1,474,636,175.46/52,136.70
  6. Step 6: Final answer
    x = 28,284.03

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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.