Home / 74,080.87-102,231.60-40,089.36

Finding the Fourth Proportional to 74,080.87, 102,231.60 and 40,089.36

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Solution

The fourth proportional to 74,080.87, 102,231.60 and 40,089.36 is: 55,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,080.87 : 102,231.60 = 40,089.36 : x
  2. Step 2: Convert to fraction form
    74,080.87/102,231.60 = 40,089.36/x
  3. Step 3: Cross multiply
    74,080.87x = 102,231.60 × 40,089.36
  4. Step 4: Simplify right side
    74,080.87x = 4,098,399,148.92
  5. Step 5: Solve for x
    x = 4,098,399,148.92/74,080.87
  6. Step 6: Final answer
    x = 55,323.31

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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.