Home / 62,408.16-93,618-20,861.28

Finding the Fourth Proportional to 62,408.16, 93,618 and 20,861.28

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Solution

The fourth proportional to 62,408.16, 93,618 and 20,861.28 is: 31,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,408.16 : 93,618 = 20,861.28 : x
  2. Step 2: Convert to fraction form
    62,408.16/93,618 = 20,861.28/x
  3. Step 3: Cross multiply
    62,408.16x = 93,618 × 20,861.28
  4. Step 4: Simplify right side
    62,408.16x = 1,952,991,311.04
  5. Step 5: Solve for x
    x = 1,952,991,311.04/62,408.16
  6. Step 6: Final answer
    x = 31,293.85

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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.