Home / 56,348.96-77,865.18-40,408.16

Finding the Fourth Proportional to 56,348.96, 77,865.18 and 40,408.16

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Solution

The fourth proportional to 56,348.96, 77,865.18 and 40,408.16 is: 55,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,348.96 : 77,865.18 = 40,408.16 : x
  2. Step 2: Convert to fraction form
    56,348.96/77,865.18 = 40,408.16/x
  3. Step 3: Cross multiply
    56,348.96x = 77,865.18 × 40,408.16
  4. Step 4: Simplify right side
    56,348.96x = 3,146,388,651.87
  5. Step 5: Solve for x
    x = 3,146,388,651.87/56,348.96
  6. Step 6: Final answer
    x = 55,837.56

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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.