Home / 45,420.36-68,105.80-15,830.24

Finding the Fourth Proportional to 45,420.36, 68,105.80 and 15,830.24

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Solution

The fourth proportional to 45,420.36, 68,105.80 and 15,830.24 is: 23,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.36 : 68,105.80 = 15,830.24 : x
  2. Step 2: Convert to fraction form
    45,420.36/68,105.80 = 15,830.24/x
  3. Step 3: Cross multiply
    45,420.36x = 68,105.80 × 15,830.24
  4. Step 4: Simplify right side
    45,420.36x = 1,078,131,159.39
  5. Step 5: Solve for x
    x = 1,078,131,159.39/45,420.36
  6. Step 6: Final answer
    x = 23,736.74

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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.