Home / 54,359.61-75,016.78-30,485.77

Finding the Fourth Proportional to 54,359.61, 75,016.78 and 30,485.77

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Solution

The fourth proportional to 54,359.61, 75,016.78 and 30,485.77 is: 42,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,359.61 : 75,016.78 = 30,485.77 : x
  2. Step 2: Convert to fraction form
    54,359.61/75,016.78 = 30,485.77/x
  3. Step 3: Cross multiply
    54,359.61x = 75,016.78 × 30,485.77
  4. Step 4: Simplify right side
    54,359.61x = 2,286,944,208.95
  5. Step 5: Solve for x
    x = 2,286,944,208.95/54,359.61
  6. Step 6: Final answer
    x = 42,070.65

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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.