Home / 45,384.42-68,079.88-12,104.30

Finding the Fourth Proportional to 45,384.42, 68,079.88 and 12,104.30

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Solution

The fourth proportional to 45,384.42, 68,079.88 and 12,104.30 is: 18,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,384.42 : 68,079.88 = 12,104.30 : x
  2. Step 2: Convert to fraction form
    45,384.42/68,079.88 = 12,104.30/x
  3. Step 3: Cross multiply
    45,384.42x = 68,079.88 × 12,104.30
  4. Step 4: Simplify right side
    45,384.42x = 824,059,291.48
  5. Step 5: Solve for x
    x = 824,059,291.48/45,384.42
  6. Step 6: Final answer
    x = 18,157.32

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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.