Home / 66,416.40-99,634.20-22,045.20

Finding the Fourth Proportional to 66,416.40, 99,634.20 and 22,045.20

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Solution

The fourth proportional to 66,416.40, 99,634.20 and 22,045.20 is: 33,070.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,416.40 : 99,634.20 = 22,045.20 : x
  2. Step 2: Convert to fraction form
    66,416.40/99,634.20 = 22,045.20/x
  3. Step 3: Cross multiply
    66,416.40x = 99,634.20 × 22,045.20
  4. Step 4: Simplify right side
    66,416.40x = 2,196,455,865.84
  5. Step 5: Solve for x
    x = 2,196,455,865.84/66,416.40
  6. Step 6: Final answer
    x = 33,070.99

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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.