Home / 55,821.60-83,739.66-18,385.50

Finding the Fourth Proportional to 55,821.60, 83,739.66 and 18,385.50

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Solution

The fourth proportional to 55,821.60, 83,739.66 and 18,385.50 is: 27,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,821.60 : 83,739.66 = 18,385.50 : x
  2. Step 2: Convert to fraction form
    55,821.60/83,739.66 = 18,385.50/x
  3. Step 3: Cross multiply
    55,821.60x = 83,739.66 × 18,385.50
  4. Step 4: Simplify right side
    55,821.60x = 1,539,595,518.93
  5. Step 5: Solve for x
    x = 1,539,595,518.93/55,821.60
  6. Step 6: Final answer
    x = 27,580.64

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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.