Home / 85,568.28-128,320.46-29,392.44

Finding the Fourth Proportional to 85,568.28, 128,320.46 and 29,392.44

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Solution

The fourth proportional to 85,568.28, 128,320.46 and 29,392.44 is: 44,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,568.28 : 128,320.46 = 29,392.44 : x
  2. Step 2: Convert to fraction form
    85,568.28/128,320.46 = 29,392.44/x
  3. Step 3: Cross multiply
    85,568.28x = 128,320.46 × 29,392.44
  4. Step 4: Simplify right side
    85,568.28x = 3,771,651,421.32
  5. Step 5: Solve for x
    x = 3,771,651,421.32/85,568.28
  6. Step 6: Final answer
    x = 44,077.68

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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.