Home / 37,142.42-55,715.45-12,172.34

Finding the Fourth Proportional to 37,142.42, 55,715.45 and 12,172.34

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Solution

The fourth proportional to 37,142.42, 55,715.45 and 12,172.34 is: 18,259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,142.42 : 55,715.45 = 12,172.34 : x
  2. Step 2: Convert to fraction form
    37,142.42/55,715.45 = 12,172.34/x
  3. Step 3: Cross multiply
    37,142.42x = 55,715.45 × 12,172.34
  4. Step 4: Simplify right side
    37,142.42x = 678,187,479.08
  5. Step 5: Solve for x
    x = 678,187,479.08/37,142.42
  6. Step 6: Final answer
    x = 18,259.11

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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.