Home / 73,815.90-110,723.85-21,222.30

Finding the Fourth Proportional to 73,815.90, 110,723.85 and 21,222.30

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Solution

The fourth proportional to 73,815.90, 110,723.85 and 21,222.30 is: 31,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.90 : 110,723.85 = 21,222.30 : x
  2. Step 2: Convert to fraction form
    73,815.90/110,723.85 = 21,222.30/x
  3. Step 3: Cross multiply
    73,815.90x = 110,723.85 × 21,222.30
  4. Step 4: Simplify right side
    73,815.90x = 2,349,814,761.86
  5. Step 5: Solve for x
    x = 2,349,814,761.86/73,815.90
  6. Step 6: Final answer
    x = 31,833.45

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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.