Home / 84,730.86-127,161.90-45,321.12

Finding the Fourth Proportional to 84,730.86, 127,161.90 and 45,321.12

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Solution

The fourth proportional to 84,730.86, 127,161.90 and 45,321.12 is: 68,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,730.86 : 127,161.90 = 45,321.12 : x
  2. Step 2: Convert to fraction form
    84,730.86/127,161.90 = 45,321.12/x
  3. Step 3: Cross multiply
    84,730.86x = 127,161.90 × 45,321.12
  4. Step 4: Simplify right side
    84,730.86x = 5,763,119,729.33
  5. Step 5: Solve for x
    x = 5,763,119,729.33/84,730.86
  6. Step 6: Final answer
    x = 68,016.77

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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.