Home / 63,729.37-87,970.62-54,740.80

Finding the Fourth Proportional to 63,729.37, 87,970.62 and 54,740.80

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Solution

The fourth proportional to 63,729.37, 87,970.62 and 54,740.80 is: 75,563.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,729.37 : 87,970.62 = 54,740.80 : x
  2. Step 2: Convert to fraction form
    63,729.37/87,970.62 = 54,740.80/x
  3. Step 3: Cross multiply
    63,729.37x = 87,970.62 × 54,740.80
  4. Step 4: Simplify right side
    63,729.37x = 4,815,582,115.30
  5. Step 5: Solve for x
    x = 4,815,582,115.30/63,729.37
  6. Step 6: Final answer
    x = 75,563.00

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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.