Home / 74,712.08-103,103.88-41,178.32

Finding the Fourth Proportional to 74,712.08, 103,103.88 and 41,178.32

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Solution

The fourth proportional to 74,712.08, 103,103.88 and 41,178.32 is: 56,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,712.08 : 103,103.88 = 41,178.32 : x
  2. Step 2: Convert to fraction form
    74,712.08/103,103.88 = 41,178.32/x
  3. Step 3: Cross multiply
    74,712.08x = 103,103.88 × 41,178.32
  4. Step 4: Simplify right side
    74,712.08x = 4,245,644,563.88
  5. Step 5: Solve for x
    x = 4,245,644,563.88/74,712.08
  6. Step 6: Final answer
    x = 56,826.75

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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.