Home / 54,336.08-74,992.20-30,472.40

Finding the Fourth Proportional to 54,336.08, 74,992.20 and 30,472.40

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Solution

The fourth proportional to 54,336.08, 74,992.20 and 30,472.40 is: 42,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336.08 : 74,992.20 = 30,472.40 : x
  2. Step 2: Convert to fraction form
    54,336.08/74,992.20 = 30,472.40/x
  3. Step 3: Cross multiply
    54,336.08x = 74,992.20 × 30,472.40
  4. Step 4: Simplify right side
    54,336.08x = 2,285,192,315.28
  5. Step 5: Solve for x
    x = 2,285,192,315.28/54,336.08
  6. Step 6: Final answer
    x = 42,056.63

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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.