Home / 56,178.72-77,484.60-39,183.84

Finding the Fourth Proportional to 56,178.72, 77,484.60 and 39,183.84

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Solution

The fourth proportional to 56,178.72, 77,484.60 and 39,183.84 is: 54,044.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,178.72 : 77,484.60 = 39,183.84 : x
  2. Step 2: Convert to fraction form
    56,178.72/77,484.60 = 39,183.84/x
  3. Step 3: Cross multiply
    56,178.72x = 77,484.60 × 39,183.84
  4. Step 4: Simplify right side
    56,178.72x = 3,036,144,168.86
  5. Step 5: Solve for x
    x = 3,036,144,168.86/56,178.72
  6. Step 6: Final answer
    x = 54,044.38

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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.