Home / 54,405.21-75,079.11-30,534.10

Finding the Fourth Proportional to 54,405.21, 75,079.11 and 30,534.10

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Solution

The fourth proportional to 54,405.21, 75,079.11 and 30,534.10 is: 42,137.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,405.21 : 75,079.11 = 30,534.10 : x
  2. Step 2: Convert to fraction form
    54,405.21/75,079.11 = 30,534.10/x
  3. Step 3: Cross multiply
    54,405.21x = 75,079.11 × 30,534.10
  4. Step 4: Simplify right side
    54,405.21x = 2,292,473,052.65
  5. Step 5: Solve for x
    x = 2,292,473,052.65/54,405.21
  6. Step 6: Final answer
    x = 42,137.01

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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.