Home / 37,145.91-55,718.65-12,185.76

Finding the Fourth Proportional to 37,145.91, 55,718.65 and 12,185.76

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Solution

The fourth proportional to 37,145.91, 55,718.65 and 12,185.76 is: 18,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,145.91 : 55,718.65 = 12,185.76 : x
  2. Step 2: Convert to fraction form
    37,145.91/55,718.65 = 12,185.76/x
  3. Step 3: Cross multiply
    37,145.91x = 55,718.65 × 12,185.76
  4. Step 4: Simplify right side
    37,145.91x = 678,974,096.42
  5. Step 5: Solve for x
    x = 678,974,096.42/37,145.91
  6. Step 6: Final answer
    x = 18,278.57

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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.