Home / 53,920.08-80,880.12-30,498.12

Finding the Fourth Proportional to 53,920.08, 80,880.12 and 30,498.12

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Solution

The fourth proportional to 53,920.08, 80,880.12 and 30,498.12 is: 45,747.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.08 : 80,880.12 = 30,498.12 : x
  2. Step 2: Convert to fraction form
    53,920.08/80,880.12 = 30,498.12/x
  3. Step 3: Cross multiply
    53,920.08x = 80,880.12 × 30,498.12
  4. Step 4: Simplify right side
    53,920.08x = 2,466,691,605.37
  5. Step 5: Solve for x
    x = 2,466,691,605.37/53,920.08
  6. Step 6: Final answer
    x = 45,747.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.