Home / 73,400.15-110,100.21-20,810.09

Finding the Fourth Proportional to 73,400.15, 110,100.21 and 20,810.09

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Solution

The fourth proportional to 73,400.15, 110,100.21 and 20,810.09 is: 31,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,400.15 : 110,100.21 = 20,810.09 : x
  2. Step 2: Convert to fraction form
    73,400.15/110,100.21 = 20,810.09/x
  3. Step 3: Cross multiply
    73,400.15x = 110,100.21 × 20,810.09
  4. Step 4: Simplify right side
    73,400.15x = 2,291,194,728.62
  5. Step 5: Solve for x
    x = 2,291,194,728.62/73,400.15
  6. Step 6: Final answer
    x = 31,215.13

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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.