Home / 68,875.21-103,352.73-28,890.64

Finding the Fourth Proportional to 68,875.21, 103,352.73 and 28,890.64

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Solution

The fourth proportional to 68,875.21, 103,352.73 and 28,890.64 is: 43,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,875.21 : 103,352.73 = 28,890.64 : x
  2. Step 2: Convert to fraction form
    68,875.21/103,352.73 = 28,890.64/x
  3. Step 3: Cross multiply
    68,875.21x = 103,352.73 × 28,890.64
  4. Step 4: Simplify right side
    68,875.21x = 2,985,926,515.45
  5. Step 5: Solve for x
    x = 2,985,926,515.45/68,875.21
  6. Step 6: Final answer
    x = 43,352.70

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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.