Home / 53,998.90-80,998.35-40,002.10

Finding the Fourth Proportional to 53,998.90, 80,998.35 and 40,002.10

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Solution

The fourth proportional to 53,998.90, 80,998.35 and 40,002.10 is: 60,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,998.90 : 80,998.35 = 40,002.10 : x
  2. Step 2: Convert to fraction form
    53,998.90/80,998.35 = 40,002.10/x
  3. Step 3: Cross multiply
    53,998.90x = 80,998.35 × 40,002.10
  4. Step 4: Simplify right side
    53,998.90x = 3,240,104,096.54
  5. Step 5: Solve for x
    x = 3,240,104,096.54/53,998.90
  6. Step 6: Final answer
    x = 60,003.15

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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.