Home / 47,977.85-71,895.70-19,480.15

Finding the Fourth Proportional to 47,977.85, 71,895.70 and 19,480.15

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Solution

The fourth proportional to 47,977.85, 71,895.70 and 19,480.15 is: 29,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,977.85 : 71,895.70 = 19,480.15 : x
  2. Step 2: Convert to fraction form
    47,977.85/71,895.70 = 19,480.15/x
  3. Step 3: Cross multiply
    47,977.85x = 71,895.70 × 19,480.15
  4. Step 4: Simplify right side
    47,977.85x = 1,400,538,739.95
  5. Step 5: Solve for x
    x = 1,400,538,739.95/47,977.85
  6. Step 6: Final answer
    x = 29,191.36

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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.