Home / 51,897.78-71,614.08-30,672.90

Finding the Fourth Proportional to 51,897.78, 71,614.08 and 30,672.90

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Solution

The fourth proportional to 51,897.78, 71,614.08 and 30,672.90 is: 42,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,897.78 : 71,614.08 = 30,672.90 : x
  2. Step 2: Convert to fraction form
    51,897.78/71,614.08 = 30,672.90/x
  3. Step 3: Cross multiply
    51,897.78x = 71,614.08 × 30,672.90
  4. Step 4: Simplify right side
    51,897.78x = 2,196,611,514.43
  5. Step 5: Solve for x
    x = 2,196,611,514.43/51,897.78
  6. Step 6: Final answer
    x = 42,325.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.