Home / 57,729.40-86,594.10-54,230.20

Finding the Fourth Proportional to 57,729.40, 86,594.10 and 54,230.20

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Solution

The fourth proportional to 57,729.40, 86,594.10 and 54,230.20 is: 81,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.40 : 86,594.10 = 54,230.20 : x
  2. Step 2: Convert to fraction form
    57,729.40/86,594.10 = 54,230.20/x
  3. Step 3: Cross multiply
    57,729.40x = 86,594.10 × 54,230.20
  4. Step 4: Simplify right side
    57,729.40x = 4,696,015,361.82
  5. Step 5: Solve for x
    x = 4,696,015,361.82/57,729.40
  6. Step 6: Final answer
    x = 81,345.30

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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.