Home / 65,712.20-98,568.30-57,936.20

Finding the Fourth Proportional to 65,712.20, 98,568.30 and 57,936.20

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Solution

The fourth proportional to 65,712.20, 98,568.30 and 57,936.20 is: 86,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712.20 : 98,568.30 = 57,936.20 : x
  2. Step 2: Convert to fraction form
    65,712.20/98,568.30 = 57,936.20/x
  3. Step 3: Cross multiply
    65,712.20x = 98,568.30 × 57,936.20
  4. Step 4: Simplify right side
    65,712.20x = 5,710,672,742.46
  5. Step 5: Solve for x
    x = 5,710,672,742.46/65,712.20
  6. Step 6: Final answer
    x = 86,904.30

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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.