Home / 55,415.73-83,085.62-19,876.28

Finding the Fourth Proportional to 55,415.73, 83,085.62 and 19,876.28

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Solution

The fourth proportional to 55,415.73, 83,085.62 and 19,876.28 is: 29,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,415.73 : 83,085.62 = 19,876.28 : x
  2. Step 2: Convert to fraction form
    55,415.73/83,085.62 = 19,876.28/x
  3. Step 3: Cross multiply
    55,415.73x = 83,085.62 × 19,876.28
  4. Step 4: Simplify right side
    55,415.73x = 1,651,433,155.43
  5. Step 5: Solve for x
    x = 1,651,433,155.43/55,415.73
  6. Step 6: Final answer
    x = 29,800.80

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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.