Home / 45,381.16-68,117.82-28,700.20

Finding the Fourth Proportional to 45,381.16, 68,117.82 and 28,700.20

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Solution

The fourth proportional to 45,381.16, 68,117.82 and 28,700.20 is: 43,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.16 : 68,117.82 = 28,700.20 : x
  2. Step 2: Convert to fraction form
    45,381.16/68,117.82 = 28,700.20/x
  3. Step 3: Cross multiply
    45,381.16x = 68,117.82 × 28,700.20
  4. Step 4: Simplify right side
    45,381.16x = 1,954,995,057.56
  5. Step 5: Solve for x
    x = 1,954,995,057.56/45,381.16
  6. Step 6: Final answer
    x = 43,079.44

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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.