Home / 71,018.06-106,567.79-28,890.36

Finding the Fourth Proportional to 71,018.06, 106,567.79 and 28,890.36

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Solution

The fourth proportional to 71,018.06, 106,567.79 and 28,890.36 is: 43,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.06 : 106,567.79 = 28,890.36 : x
  2. Step 2: Convert to fraction form
    71,018.06/106,567.79 = 28,890.36/x
  3. Step 3: Cross multiply
    71,018.06x = 106,567.79 × 28,890.36
  4. Step 4: Simplify right side
    71,018.06x = 3,078,781,673.05
  5. Step 5: Solve for x
    x = 3,078,781,673.05/71,018.06
  6. Step 6: Final answer
    x = 43,352.10

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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.