Home / 55,883.85-83,780.64-18,420.54

Finding the Fourth Proportional to 55,883.85, 83,780.64 and 18,420.54

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Solution

The fourth proportional to 55,883.85, 83,780.64 and 18,420.54 is: 27,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,883.85 : 83,780.64 = 18,420.54 : x
  2. Step 2: Convert to fraction form
    55,883.85/83,780.64 = 18,420.54/x
  3. Step 3: Cross multiply
    55,883.85x = 83,780.64 × 18,420.54
  4. Step 4: Simplify right side
    55,883.85x = 1,543,284,630.35
  5. Step 5: Solve for x
    x = 1,543,284,630.35/55,883.85
  6. Step 6: Final answer
    x = 27,615.93

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1.5x scale

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.