Home / 57,973.40-79,966.12-39,815.36

Finding the Fourth Proportional to 57,973.40, 79,966.12 and 39,815.36

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Solution

The fourth proportional to 57,973.40, 79,966.12 and 39,815.36 is: 54,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,973.40 : 79,966.12 = 39,815.36 : x
  2. Step 2: Convert to fraction form
    57,973.40/79,966.12 = 39,815.36/x
  3. Step 3: Cross multiply
    57,973.40x = 79,966.12 × 39,815.36
  4. Step 4: Simplify right side
    57,973.40x = 3,183,879,855.60
  5. Step 5: Solve for x
    x = 3,183,879,855.60/57,973.40
  6. Step 6: Final answer
    x = 54,919.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.