Home / 54,408.08-75,078.02-30,530.10

Finding the Fourth Proportional to 54,408.08, 75,078.02 and 30,530.10

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Solution

The fourth proportional to 54,408.08, 75,078.02 and 30,530.10 is: 42,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,408.08 : 75,078.02 = 30,530.10 : x
  2. Step 2: Convert to fraction form
    54,408.08/75,078.02 = 30,530.10/x
  3. Step 3: Cross multiply
    54,408.08x = 75,078.02 × 30,530.10
  4. Step 4: Simplify right side
    54,408.08x = 2,292,139,458.40
  5. Step 5: Solve for x
    x = 2,292,139,458.40/54,408.08
  6. Step 6: Final answer
    x = 42,128.66

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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.