Home / 54,782.79-75,603.81-30,900.75

Finding the Fourth Proportional to 54,782.79, 75,603.81 and 30,900.75

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Solution

The fourth proportional to 54,782.79, 75,603.81 and 30,900.75 is: 42,645.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,782.79 : 75,603.81 = 30,900.75 : x
  2. Step 2: Convert to fraction form
    54,782.79/75,603.81 = 30,900.75/x
  3. Step 3: Cross multiply
    54,782.79x = 75,603.81 × 30,900.75
  4. Step 4: Simplify right side
    54,782.79x = 2,336,214,431.86
  5. Step 5: Solve for x
    x = 2,336,214,431.86/54,782.79
  6. Step 6: Final answer
    x = 42,645.04

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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.