Home / 45,281.26-67,900.04-18,978.94

Finding the Fourth Proportional to 45,281.26, 67,900.04 and 18,978.94

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Solution

The fourth proportional to 45,281.26, 67,900.04 and 18,978.94 is: 28,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,281.26 : 67,900.04 = 18,978.94 : x
  2. Step 2: Convert to fraction form
    45,281.26/67,900.04 = 18,978.94/x
  3. Step 3: Cross multiply
    45,281.26x = 67,900.04 × 18,978.94
  4. Step 4: Simplify right side
    45,281.26x = 1,288,670,350.76
  5. Step 5: Solve for x
    x = 1,288,670,350.76/45,281.26
  6. Step 6: Final answer
    x = 28,459.25

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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.