Home / 47,710.80-71,539.20-18,129.60

Finding the Fourth Proportional to 47,710.80, 71,539.20 and 18,129.60

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Solution

The fourth proportional to 47,710.80, 71,539.20 and 18,129.60 is: 27,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,710.80 : 71,539.20 = 18,129.60 : x
  2. Step 2: Convert to fraction form
    47,710.80/71,539.20 = 18,129.60/x
  3. Step 3: Cross multiply
    47,710.80x = 71,539.20 × 18,129.60
  4. Step 4: Simplify right side
    47,710.80x = 1,296,977,080.32
  5. Step 5: Solve for x
    x = 1,296,977,080.32/47,710.80
  6. Step 6: Final answer
    x = 27,184.14

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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.