Home / 45,146.50-67,719.60-13,556.43

Finding the Fourth Proportional to 45,146.50, 67,719.60 and 13,556.43

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Solution

The fourth proportional to 45,146.50, 67,719.60 and 13,556.43 is: 20,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,146.50 : 67,719.60 = 13,556.43 : x
  2. Step 2: Convert to fraction form
    45,146.50/67,719.60 = 13,556.43/x
  3. Step 3: Cross multiply
    45,146.50x = 67,719.60 × 13,556.43
  4. Step 4: Simplify right side
    45,146.50x = 918,036,017.03
  5. Step 5: Solve for x
    x = 918,036,017.03/45,146.50
  6. Step 6: Final answer
    x = 20,334.60

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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.