Home / 55,905.64-83,819.58-20,835.88

Finding the Fourth Proportional to 55,905.64, 83,819.58 and 20,835.88

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Solution

The fourth proportional to 55,905.64, 83,819.58 and 20,835.88 is: 31,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.64 : 83,819.58 = 20,835.88 : x
  2. Step 2: Convert to fraction form
    55,905.64/83,819.58 = 20,835.88/x
  3. Step 3: Cross multiply
    55,905.64x = 83,819.58 × 20,835.88
  4. Step 4: Simplify right side
    55,905.64x = 1,746,454,710.53
  5. Step 5: Solve for x
    x = 1,746,454,710.53/55,905.64
  6. Step 6: Final answer
    x = 31,239.33

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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.