Home / 55,815.36-83,723.24-13,695.72

Finding the Fourth Proportional to 55,815.36, 83,723.24 and 13,695.72

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Solution

The fourth proportional to 55,815.36, 83,723.24 and 13,695.72 is: 20,543.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,815.36 : 83,723.24 = 13,695.72 : x
  2. Step 2: Convert to fraction form
    55,815.36/83,723.24 = 13,695.72/x
  3. Step 3: Cross multiply
    55,815.36x = 83,723.24 × 13,695.72
  4. Step 4: Simplify right side
    55,815.36x = 1,146,650,052.53
  5. Step 5: Solve for x
    x = 1,146,650,052.53/55,815.36
  6. Step 6: Final answer
    x = 20,543.63

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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.