Home / 54,750.72-75,554.88-30,879.36

Finding the Fourth Proportional to 54,750.72, 75,554.88 and 30,879.36

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Solution

The fourth proportional to 54,750.72, 75,554.88 and 30,879.36 is: 42,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,750.72 : 75,554.88 = 30,879.36 : x
  2. Step 2: Convert to fraction form
    54,750.72/75,554.88 = 30,879.36/x
  3. Step 3: Cross multiply
    54,750.72x = 75,554.88 × 30,879.36
  4. Step 4: Simplify right side
    54,750.72x = 2,333,086,339.28
  5. Step 5: Solve for x
    x = 2,333,086,339.28/54,750.72
  6. Step 6: Final answer
    x = 42,612.89

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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.