Home / 66,515.60-99,773.40-22,143.80

Finding the Fourth Proportional to 66,515.60, 99,773.40 and 22,143.80

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Solution

The fourth proportional to 66,515.60, 99,773.40 and 22,143.80 is: 33,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.60 : 99,773.40 = 22,143.80 : x
  2. Step 2: Convert to fraction form
    66,515.60/99,773.40 = 22,143.80/x
  3. Step 3: Cross multiply
    66,515.60x = 99,773.40 × 22,143.80
  4. Step 4: Simplify right side
    66,515.60x = 2,209,362,214.92
  5. Step 5: Solve for x
    x = 2,209,362,214.92/66,515.60
  6. Step 6: Final answer
    x = 33,215.70

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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.