Home / 45,188.72-67,779.30-14,021

Finding the Fourth Proportional to 45,188.72, 67,779.30 and 14,021

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Solution

The fourth proportional to 45,188.72, 67,779.30 and 14,021 is: 21,030.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,188.72 : 67,779.30 = 14,021 : x
  2. Step 2: Convert to fraction form
    45,188.72/67,779.30 = 14,021/x
  3. Step 3: Cross multiply
    45,188.72x = 67,779.30 × 14,021
  4. Step 4: Simplify right side
    45,188.72x = 950,333,565.30
  5. Step 5: Solve for x
    x = 950,333,565.30/45,188.72
  6. Step 6: Final answer
    x = 21,030.33

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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.