Home / 45,318.84-67,985.15-23,120.09

Finding the Fourth Proportional to 45,318.84, 67,985.15 and 23,120.09

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Solution

The fourth proportional to 45,318.84, 67,985.15 and 23,120.09 is: 34,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,318.84 : 67,985.15 = 23,120.09 : x
  2. Step 2: Convert to fraction form
    45,318.84/67,985.15 = 23,120.09/x
  3. Step 3: Cross multiply
    45,318.84x = 67,985.15 × 23,120.09
  4. Step 4: Simplify right side
    45,318.84x = 1,571,822,331.14
  5. Step 5: Solve for x
    x = 1,571,822,331.14/45,318.84
  6. Step 6: Final answer
    x = 34,683.64

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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.