Home / 66,789.42-100,154.76-20,031.36

Finding the Fourth Proportional to 66,789.42, 100,154.76 and 20,031.36

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Solution

The fourth proportional to 66,789.42, 100,154.76 and 20,031.36 is: 30,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,789.42 : 100,154.76 = 20,031.36 : x
  2. Step 2: Convert to fraction form
    66,789.42/100,154.76 = 20,031.36/x
  3. Step 3: Cross multiply
    66,789.42x = 100,154.76 × 20,031.36
  4. Step 4: Simplify right side
    66,789.42x = 2,006,236,053.27
  5. Step 5: Solve for x
    x = 2,006,236,053.27/66,789.42
  6. Step 6: Final answer
    x = 30,038.23

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1.5x scale

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.