Home / 53,763.39-80,647.52-18,705.78

Finding the Fourth Proportional to 53,763.39, 80,647.52 and 18,705.78

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Solution

The fourth proportional to 53,763.39, 80,647.52 and 18,705.78 is: 28,059.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,763.39 : 80,647.52 = 18,705.78 : x
  2. Step 2: Convert to fraction form
    53,763.39/80,647.52 = 18,705.78/x
  3. Step 3: Cross multiply
    53,763.39x = 80,647.52 × 18,705.78
  4. Step 4: Simplify right side
    53,763.39x = 1,508,574,673.14
  5. Step 5: Solve for x
    x = 1,508,574,673.14/53,763.39
  6. Step 6: Final answer
    x = 28,059.52

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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.