Home / 49,971.58-69,000.48-30,879.06

Finding the Fourth Proportional to 49,971.58, 69,000.48 and 30,879.06

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Solution

The fourth proportional to 49,971.58, 69,000.48 and 30,879.06 is: 42,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,971.58 : 69,000.48 = 30,879.06 : x
  2. Step 2: Convert to fraction form
    49,971.58/69,000.48 = 30,879.06/x
  3. Step 3: Cross multiply
    49,971.58x = 69,000.48 × 30,879.06
  4. Step 4: Simplify right side
    49,971.58x = 2,130,669,961.95
  5. Step 5: Solve for x
    x = 2,130,669,961.95/49,971.58
  6. Step 6: Final answer
    x = 42,637.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.