Home / 66,422.32-99,633.84-19,675.60

Finding the Fourth Proportional to 66,422.32, 99,633.84 and 19,675.60

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Solution

The fourth proportional to 66,422.32, 99,633.84 and 19,675.60 is: 29,513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422.32 : 99,633.84 = 19,675.60 : x
  2. Step 2: Convert to fraction form
    66,422.32/99,633.84 = 19,675.60/x
  3. Step 3: Cross multiply
    66,422.32x = 99,633.84 × 19,675.60
  4. Step 4: Simplify right side
    66,422.32x = 1,960,355,582.30
  5. Step 5: Solve for x
    x = 1,960,355,582.30/66,422.32
  6. Step 6: Final answer
    x = 29,513.51

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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.