Home / 45,405.06-68,108.08-13,820.24

Finding the Fourth Proportional to 45,405.06, 68,108.08 and 13,820.24

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Solution

The fourth proportional to 45,405.06, 68,108.08 and 13,820.24 is: 20,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.06 : 68,108.08 = 13,820.24 : x
  2. Step 2: Convert to fraction form
    45,405.06/68,108.08 = 13,820.24/x
  3. Step 3: Cross multiply
    45,405.06x = 68,108.08 × 13,820.24
  4. Step 4: Simplify right side
    45,405.06x = 941,270,011.54
  5. Step 5: Solve for x
    x = 941,270,011.54/45,405.06
  6. Step 6: Final answer
    x = 20,730.51

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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.