Home / 45,289.74-67,921.65-14,116.62

Finding the Fourth Proportional to 45,289.74, 67,921.65 and 14,116.62

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Solution

The fourth proportional to 45,289.74, 67,921.65 and 14,116.62 is: 21,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,289.74 : 67,921.65 = 14,116.62 : x
  2. Step 2: Convert to fraction form
    45,289.74/67,921.65 = 14,116.62/x
  3. Step 3: Cross multiply
    45,289.74x = 67,921.65 × 14,116.62
  4. Step 4: Simplify right side
    45,289.74x = 958,824,122.82
  5. Step 5: Solve for x
    x = 958,824,122.82/45,289.74
  6. Step 6: Final answer
    x = 21,170.89

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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.