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Finding the Fourth Proportional to 69,212.30, 103,672.65 and 56,090.30

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Solution

The fourth proportional to 69,212.30, 103,672.65 and 56,090.30 is: 84,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,212.30 : 103,672.65 = 56,090.30 : x
  2. Step 2: Convert to fraction form
    69,212.30/103,672.65 = 56,090.30/x
  3. Step 3: Cross multiply
    69,212.30x = 103,672.65 × 56,090.30
  4. Step 4: Simplify right side
    69,212.30x = 5,815,030,040.30
  5. Step 5: Solve for x
    x = 5,815,030,040.30/69,212.30
  6. Step 6: Final answer
    x = 84,017.29

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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.