Home / 51,864.60-77,835.30-20,722.20

Finding the Fourth Proportional to 51,864.60, 77,835.30 and 20,722.20

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Solution

The fourth proportional to 51,864.60, 77,835.30 and 20,722.20 is: 31,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,864.60 : 77,835.30 = 20,722.20 : x
  2. Step 2: Convert to fraction form
    51,864.60/77,835.30 = 20,722.20/x
  3. Step 3: Cross multiply
    51,864.60x = 77,835.30 × 20,722.20
  4. Step 4: Simplify right side
    51,864.60x = 1,612,918,653.66
  5. Step 5: Solve for x
    x = 1,612,918,653.66/51,864.60
  6. Step 6: Final answer
    x = 31,098.64

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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.