Home / 74,904.64-112,357.50-18,745.72

Finding the Fourth Proportional to 74,904.64, 112,357.50 and 18,745.72

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Solution

The fourth proportional to 74,904.64, 112,357.50 and 18,745.72 is: 28,118.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,904.64 : 112,357.50 = 18,745.72 : x
  2. Step 2: Convert to fraction form
    74,904.64/112,357.50 = 18,745.72/x
  3. Step 3: Cross multiply
    74,904.64x = 112,357.50 × 18,745.72
  4. Step 4: Simplify right side
    74,904.64x = 2,106,222,234.90
  5. Step 5: Solve for x
    x = 2,106,222,234.90/74,904.64
  6. Step 6: Final answer
    x = 28,118.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.