Home / 45,130.05-67,718.13-30,147.42

Finding the Fourth Proportional to 45,130.05, 67,718.13 and 30,147.42

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Solution

The fourth proportional to 45,130.05, 67,718.13 and 30,147.42 is: 45,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.05 : 67,718.13 = 30,147.42 : x
  2. Step 2: Convert to fraction form
    45,130.05/67,718.13 = 30,147.42/x
  3. Step 3: Cross multiply
    45,130.05x = 67,718.13 × 30,147.42
  4. Step 4: Simplify right side
    45,130.05x = 2,041,526,906.72
  5. Step 5: Solve for x
    x = 2,041,526,906.72/45,130.05
  6. Step 6: Final answer
    x = 45,236.53

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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.