Home / 85,402.22-117,889.80-55,190.03

Finding the Fourth Proportional to 85,402.22, 117,889.80 and 55,190.03

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Solution

The fourth proportional to 85,402.22, 117,889.80 and 55,190.03 is: 76,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,402.22 : 117,889.80 = 55,190.03 : x
  2. Step 2: Convert to fraction form
    85,402.22/117,889.80 = 55,190.03/x
  3. Step 3: Cross multiply
    85,402.22x = 117,889.80 × 55,190.03
  4. Step 4: Simplify right side
    85,402.22x = 6,506,340,733.29
  5. Step 5: Solve for x
    x = 6,506,340,733.29/85,402.22
  6. Step 6: Final answer
    x = 76,184.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.