Home / 56,163.21-77,505.39-30,669.81

Finding the Fourth Proportional to 56,163.21, 77,505.39 and 30,669.81

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Solution

The fourth proportional to 56,163.21, 77,505.39 and 30,669.81 is: 42,324.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,163.21 : 77,505.39 = 30,669.81 : x
  2. Step 2: Convert to fraction form
    56,163.21/77,505.39 = 30,669.81/x
  3. Step 3: Cross multiply
    56,163.21x = 77,505.39 × 30,669.81
  4. Step 4: Simplify right side
    56,163.21x = 2,377,075,585.28
  5. Step 5: Solve for x
    x = 2,377,075,585.28/56,163.21
  6. Step 6: Final answer
    x = 42,324.43

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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.