Home / 74,629.37-102,987.06-40,638.27

Finding the Fourth Proportional to 74,629.37, 102,987.06 and 40,638.27

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Solution

The fourth proportional to 74,629.37, 102,987.06 and 40,638.27 is: 56,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,629.37 : 102,987.06 = 40,638.27 : x
  2. Step 2: Convert to fraction form
    74,629.37/102,987.06 = 40,638.27/x
  3. Step 3: Cross multiply
    74,629.37x = 102,987.06 × 40,638.27
  4. Step 4: Simplify right side
    74,629.37x = 4,185,215,833.88
  5. Step 5: Solve for x
    x = 4,185,215,833.88/74,629.37
  6. Step 6: Final answer
    x = 56,080.01

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1.5x scale

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.