Home / 85,534.24-127,448.84-76,223.20

Finding the Fourth Proportional to 85,534.24, 127,448.84 and 76,223.20

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Solution

The fourth proportional to 85,534.24, 127,448.84 and 76,223.20 is: 113,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,534.24 : 127,448.84 = 76,223.20 : x
  2. Step 2: Convert to fraction form
    85,534.24/127,448.84 = 76,223.20/x
  3. Step 3: Cross multiply
    85,534.24x = 127,448.84 × 76,223.20
  4. Step 4: Simplify right side
    85,534.24x = 9,714,558,421.09
  5. Step 5: Solve for x
    x = 9,714,558,421.09/85,534.24
  6. Step 6: Final answer
    x = 113,575.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.