Home / 55,292.05-82,938.13-13,739.05

Finding the Fourth Proportional to 55,292.05, 82,938.13 and 13,739.05

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Solution

The fourth proportional to 55,292.05, 82,938.13 and 13,739.05 is: 20,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,292.05 : 82,938.13 = 13,739.05 : x
  2. Step 2: Convert to fraction form
    55,292.05/82,938.13 = 13,739.05/x
  3. Step 3: Cross multiply
    55,292.05x = 82,938.13 × 13,739.05
  4. Step 4: Simplify right side
    55,292.05x = 1,139,490,631.59
  5. Step 5: Solve for x
    x = 1,139,490,631.59/55,292.05
  6. Step 6: Final answer
    x = 20,608.58

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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.