Home / 80,031.08-120,011.25-42,582.27

Finding the Fourth Proportional to 80,031.08, 120,011.25 and 42,582.27

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Solution

The fourth proportional to 80,031.08, 120,011.25 and 42,582.27 is: 63,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,031.08 : 120,011.25 = 42,582.27 : x
  2. Step 2: Convert to fraction form
    80,031.08/120,011.25 = 42,582.27/x
  3. Step 3: Cross multiply
    80,031.08x = 120,011.25 × 42,582.27
  4. Step 4: Simplify right side
    80,031.08x = 5,110,351,450.54
  5. Step 5: Solve for x
    x = 5,110,351,450.54/80,031.08
  6. Step 6: Final answer
    x = 63,854.59

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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.