Home / 55,427.08-83,140.74-13,874.20

Finding the Fourth Proportional to 55,427.08, 83,140.74 and 13,874.20

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Solution

The fourth proportional to 55,427.08, 83,140.74 and 13,874.20 is: 20,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,427.08 : 83,140.74 = 13,874.20 : x
  2. Step 2: Convert to fraction form
    55,427.08/83,140.74 = 13,874.20/x
  3. Step 3: Cross multiply
    55,427.08x = 83,140.74 × 13,874.20
  4. Step 4: Simplify right side
    55,427.08x = 1,153,511,254.91
  5. Step 5: Solve for x
    x = 1,153,511,254.91/55,427.08
  6. Step 6: Final answer
    x = 20,811.33

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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.