Home / 47,782.61-71,668.40-12,725.00

Finding the Fourth Proportional to 47,782.61, 71,668.40 and 12,725.00

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Solution

The fourth proportional to 47,782.61, 71,668.40 and 12,725.00 is: 19,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,782.61 : 71,668.40 = 12,725.00 : x
  2. Step 2: Convert to fraction form
    47,782.61/71,668.40 = 12,725.00/x
  3. Step 3: Cross multiply
    47,782.61x = 71,668.40 × 12,725.00
  4. Step 4: Simplify right side
    47,782.61x = 911,980,236.79
  5. Step 5: Solve for x
    x = 911,980,236.79/47,782.61
  6. Step 6: Final answer
    x = 19,086.03

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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.