Home / 56,536.76-77,977-41,423.78

Finding the Fourth Proportional to 56,536.76, 77,977 and 41,423.78

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Solution

The fourth proportional to 56,536.76, 77,977 and 41,423.78 is: 57,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,536.76 : 77,977 = 41,423.78 : x
  2. Step 2: Convert to fraction form
    56,536.76/77,977 = 41,423.78/x
  3. Step 3: Cross multiply
    56,536.76x = 77,977 × 41,423.78
  4. Step 4: Simplify right side
    56,536.76x = 3,230,102,093.06
  5. Step 5: Solve for x
    x = 3,230,102,093.06/56,536.76
  6. Step 6: Final answer
    x = 57,132.78

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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.