Home / 73,271.40-109,907.28-20,680.86

Finding the Fourth Proportional to 73,271.40, 109,907.28 and 20,680.86

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Solution

The fourth proportional to 73,271.40, 109,907.28 and 20,680.86 is: 31,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,271.40 : 109,907.28 = 20,680.86 : x
  2. Step 2: Convert to fraction form
    73,271.40/109,907.28 = 20,680.86/x
  3. Step 3: Cross multiply
    73,271.40x = 109,907.28 × 20,680.86
  4. Step 4: Simplify right side
    73,271.40x = 2,272,977,070.66
  5. Step 5: Solve for x
    x = 2,272,977,070.66/73,271.40
  6. Step 6: Final answer
    x = 31,021.34

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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.