Home / 53,982.90-80,998.65-18,947.70

Finding the Fourth Proportional to 53,982.90, 80,998.65 and 18,947.70

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Solution

The fourth proportional to 53,982.90, 80,998.65 and 18,947.70 is: 28,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,982.90 : 80,998.65 = 18,947.70 : x
  2. Step 2: Convert to fraction form
    53,982.90/80,998.65 = 18,947.70/x
  3. Step 3: Cross multiply
    53,982.90x = 80,998.65 × 18,947.70
  4. Step 4: Simplify right side
    53,982.90x = 1,534,738,120.61
  5. Step 5: Solve for x
    x = 1,534,738,120.61/53,982.90
  6. Step 6: Final answer
    x = 28,430.08

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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.