Home / 54,649.92-75,417.14-30,777

Finding the Fourth Proportional to 54,649.92, 75,417.14 and 30,777

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Solution

The fourth proportional to 54,649.92, 75,417.14 and 30,777 is: 42,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,649.92 : 75,417.14 = 30,777 : x
  2. Step 2: Convert to fraction form
    54,649.92/75,417.14 = 30,777/x
  3. Step 3: Cross multiply
    54,649.92x = 75,417.14 × 30,777
  4. Step 4: Simplify right side
    54,649.92x = 2,321,113,317.78
  5. Step 5: Solve for x
    x = 2,321,113,317.78/54,649.92
  6. Step 6: Final answer
    x = 42,472.40

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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.