Home / 56,186.64-84,283.20-21,126.60

Finding the Fourth Proportional to 56,186.64, 84,283.20 and 21,126.60

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Solution

The fourth proportional to 56,186.64, 84,283.20 and 21,126.60 is: 31,691.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,186.64 : 84,283.20 = 21,126.60 : x
  2. Step 2: Convert to fraction form
    56,186.64/84,283.20 = 21,126.60/x
  3. Step 3: Cross multiply
    56,186.64x = 84,283.20 × 21,126.60
  4. Step 4: Simplify right side
    56,186.64x = 1,780,617,400.30
  5. Step 5: Solve for x
    x = 1,780,617,400.30/56,186.64
  6. Step 6: Final answer
    x = 31,691.12

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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.