Home / 45,590.55-68,378.99-14,421.75

Finding the Fourth Proportional to 45,590.55, 68,378.99 and 14,421.75

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Solution

The fourth proportional to 45,590.55, 68,378.99 and 14,421.75 is: 21,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,590.55 : 68,378.99 = 14,421.75 : x
  2. Step 2: Convert to fraction form
    45,590.55/68,378.99 = 14,421.75/x
  3. Step 3: Cross multiply
    45,590.55x = 68,378.99 × 14,421.75
  4. Step 4: Simplify right side
    45,590.55x = 986,144,626.92
  5. Step 5: Solve for x
    x = 986,144,626.92/45,590.55
  6. Step 6: Final answer
    x = 21,630.46

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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.