Home / 55,138.13-82,702.26-17,688.03

Finding the Fourth Proportional to 55,138.13, 82,702.26 and 17,688.03

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Solution

The fourth proportional to 55,138.13, 82,702.26 and 17,688.03 is: 26,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,138.13 : 82,702.26 = 17,688.03 : x
  2. Step 2: Convert to fraction form
    55,138.13/82,702.26 = 17,688.03/x
  3. Step 3: Cross multiply
    55,138.13x = 82,702.26 × 17,688.03
  4. Step 4: Simplify right side
    55,138.13x = 1,462,840,055.95
  5. Step 5: Solve for x
    x = 1,462,840,055.95/55,138.13
  6. Step 6: Final answer
    x = 26,530.46

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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.