Home / 69,036.18-103,555.55-21,650.22

Finding the Fourth Proportional to 69,036.18, 103,555.55 and 21,650.22

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Solution

The fourth proportional to 69,036.18, 103,555.55 and 21,650.22 is: 32,475.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,036.18 : 103,555.55 = 21,650.22 : x
  2. Step 2: Convert to fraction form
    69,036.18/103,555.55 = 21,650.22/x
  3. Step 3: Cross multiply
    69,036.18x = 103,555.55 × 21,650.22
  4. Step 4: Simplify right side
    69,036.18x = 2,242,000,493.85
  5. Step 5: Solve for x
    x = 2,242,000,493.85/69,036.18
  6. Step 6: Final answer
    x = 32,475.73

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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.