Home / 40,107.23-55,289.02-30,530.43

Finding the Fourth Proportional to 40,107.23, 55,289.02 and 30,530.43

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Solution

The fourth proportional to 40,107.23, 55,289.02 and 30,530.43 is: 42,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,107.23 : 55,289.02 = 30,530.43 : x
  2. Step 2: Convert to fraction form
    40,107.23/55,289.02 = 30,530.43/x
  3. Step 3: Cross multiply
    40,107.23x = 55,289.02 × 30,530.43
  4. Step 4: Simplify right side
    40,107.23x = 1,687,997,554.88
  5. Step 5: Solve for x
    x = 1,687,997,554.88/40,107.23
  6. Step 6: Final answer
    x = 42,087.11

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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.