Home / 54,642.36-75,406.10-30,776.72

Finding the Fourth Proportional to 54,642.36, 75,406.10 and 30,776.72

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Solution

The fourth proportional to 54,642.36, 75,406.10 and 30,776.72 is: 42,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,642.36 : 75,406.10 = 30,776.72 : x
  2. Step 2: Convert to fraction form
    54,642.36/75,406.10 = 30,776.72/x
  3. Step 3: Cross multiply
    54,642.36x = 75,406.10 × 30,776.72
  4. Step 4: Simplify right side
    54,642.36x = 2,320,752,425.99
  5. Step 5: Solve for x
    x = 2,320,752,425.99/54,642.36
  6. Step 6: Final answer
    x = 42,471.67

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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.