Home / 81,080.41-111,889.92-45,271.03

Finding the Fourth Proportional to 81,080.41, 111,889.92 and 45,271.03

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Solution

The fourth proportional to 81,080.41, 111,889.92 and 45,271.03 is: 62,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080.41 : 111,889.92 = 45,271.03 : x
  2. Step 2: Convert to fraction form
    81,080.41/111,889.92 = 45,271.03/x
  3. Step 3: Cross multiply
    81,080.41x = 111,889.92 × 45,271.03
  4. Step 4: Simplify right side
    81,080.41x = 5,065,371,925.02
  5. Step 5: Solve for x
    x = 5,065,371,925.02/81,080.41
  6. Step 6: Final answer
    x = 62,473.44

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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.