Home / 51,064.40-76,654.20-39,429.20

Finding the Fourth Proportional to 51,064.40, 76,654.20 and 39,429.20

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Solution

The fourth proportional to 51,064.40, 76,654.20 and 39,429.20 is: 59,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,064.40 : 76,654.20 = 39,429.20 : x
  2. Step 2: Convert to fraction form
    51,064.40/76,654.20 = 39,429.20/x
  3. Step 3: Cross multiply
    51,064.40x = 76,654.20 × 39,429.20
  4. Step 4: Simplify right side
    51,064.40x = 3,022,413,782.64
  5. Step 5: Solve for x
    x = 3,022,413,782.64/51,064.40
  6. Step 6: Final answer
    x = 59,188.28

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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.