Home / 47,786.42-71,670.02-45,415.35

Finding the Fourth Proportional to 47,786.42, 71,670.02 and 45,415.35

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Solution

The fourth proportional to 47,786.42, 71,670.02 and 45,415.35 is: 68,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,786.42 : 71,670.02 = 45,415.35 : x
  2. Step 2: Convert to fraction form
    47,786.42/71,670.02 = 45,415.35/x
  3. Step 3: Cross multiply
    47,786.42x = 71,670.02 × 45,415.35
  4. Step 4: Simplify right side
    47,786.42x = 3,254,918,815.73
  5. Step 5: Solve for x
    x = 3,254,918,815.73/47,786.42
  6. Step 6: Final answer
    x = 68,113.88

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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.