Home / 74,682.32-112,014.84-19,282.64

Finding the Fourth Proportional to 74,682.32, 112,014.84 and 19,282.64

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Solution

The fourth proportional to 74,682.32, 112,014.84 and 19,282.64 is: 28,921.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,682.32 : 112,014.84 = 19,282.64 : x
  2. Step 2: Convert to fraction form
    74,682.32/112,014.84 = 19,282.64/x
  3. Step 3: Cross multiply
    74,682.32x = 112,014.84 × 19,282.64
  4. Step 4: Simplify right side
    74,682.32x = 2,159,941,834.38
  5. Step 5: Solve for x
    x = 2,159,941,834.38/74,682.32
  6. Step 6: Final answer
    x = 28,921.73

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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.