Home / 87,739.02-121,076.64-50,005.98

Finding the Fourth Proportional to 87,739.02, 121,076.64 and 50,005.98

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Solution

The fourth proportional to 87,739.02, 121,076.64 and 50,005.98 is: 69,006.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,739.02 : 121,076.64 = 50,005.98 : x
  2. Step 2: Convert to fraction form
    87,739.02/121,076.64 = 50,005.98/x
  3. Step 3: Cross multiply
    87,739.02x = 121,076.64 × 50,005.98
  4. Step 4: Simplify right side
    87,739.02x = 6,054,556,038.31
  5. Step 5: Solve for x
    x = 6,054,556,038.31/87,739.02
  6. Step 6: Final answer
    x = 69,006.42

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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.