Home / 55,515.55-83,272.61-13,395.28

Finding the Fourth Proportional to 55,515.55, 83,272.61 and 13,395.28

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Solution

The fourth proportional to 55,515.55, 83,272.61 and 13,395.28 is: 20,092.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.55 : 83,272.61 = 13,395.28 : x
  2. Step 2: Convert to fraction form
    55,515.55/83,272.61 = 13,395.28/x
  3. Step 3: Cross multiply
    55,515.55x = 83,272.61 × 13,395.28
  4. Step 4: Simplify right side
    55,515.55x = 1,115,459,677.24
  5. Step 5: Solve for x
    x = 1,115,459,677.24/55,515.55
  6. Step 6: Final answer
    x = 20,092.74

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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.