Home / 45,720.97-68,574.52-12,443.63

Finding the Fourth Proportional to 45,720.97, 68,574.52 and 12,443.63

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Solution

The fourth proportional to 45,720.97, 68,574.52 and 12,443.63 is: 18,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,720.97 : 68,574.52 = 12,443.63 : x
  2. Step 2: Convert to fraction form
    45,720.97/68,574.52 = 12,443.63/x
  3. Step 3: Cross multiply
    45,720.97x = 68,574.52 × 12,443.63
  4. Step 4: Simplify right side
    45,720.97x = 853,315,626.99
  5. Step 5: Solve for x
    x = 853,315,626.99/45,720.97
  6. Step 6: Final answer
    x = 18,663.55

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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.