Home / 66,151.08-99,101.52-51,287.16

Finding the Fourth Proportional to 66,151.08, 99,101.52 and 51,287.16

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Solution

The fourth proportional to 66,151.08, 99,101.52 and 51,287.16 is: 76,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,151.08 : 99,101.52 = 51,287.16 : x
  2. Step 2: Convert to fraction form
    66,151.08/99,101.52 = 51,287.16/x
  3. Step 3: Cross multiply
    66,151.08x = 99,101.52 × 51,287.16
  4. Step 4: Simplify right side
    66,151.08x = 5,082,635,512.48
  5. Step 5: Solve for x
    x = 5,082,635,512.48/66,151.08
  6. Step 6: Final answer
    x = 76,833.75

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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.