Home / 53,118.38-79,691.25-19,838.67

Finding the Fourth Proportional to 53,118.38, 79,691.25 and 19,838.67

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Solution

The fourth proportional to 53,118.38, 79,691.25 and 19,838.67 is: 29,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,118.38 : 79,691.25 = 19,838.67 : x
  2. Step 2: Convert to fraction form
    53,118.38/79,691.25 = 19,838.67/x
  3. Step 3: Cross multiply
    53,118.38x = 79,691.25 × 19,838.67
  4. Step 4: Simplify right side
    53,118.38x = 1,580,968,410.64
  5. Step 5: Solve for x
    x = 1,580,968,410.64/53,118.38
  6. Step 6: Final answer
    x = 29,763.12

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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.