Home / 45,590.30-68,378.61-14,421.50

Finding the Fourth Proportional to 45,590.30, 68,378.61 and 14,421.50

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Solution

The fourth proportional to 45,590.30, 68,378.61 and 14,421.50 is: 21,630.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,590.30 : 68,378.61 = 14,421.50 : x
  2. Step 2: Convert to fraction form
    45,590.30/68,378.61 = 14,421.50/x
  3. Step 3: Cross multiply
    45,590.30x = 68,378.61 × 14,421.50
  4. Step 4: Simplify right side
    45,590.30x = 986,122,124.12
  5. Step 5: Solve for x
    x = 986,122,124.12/45,590.30
  6. Step 6: Final answer
    x = 21,630.09

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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.