Home / 85,271.08-117,748.38-53,494.60

Finding the Fourth Proportional to 85,271.08, 117,748.38 and 53,494.60

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Solution

The fourth proportional to 85,271.08, 117,748.38 and 53,494.60 is: 73,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271.08 : 117,748.38 = 53,494.60 : x
  2. Step 2: Convert to fraction form
    85,271.08/117,748.38 = 53,494.60/x
  3. Step 3: Cross multiply
    85,271.08x = 117,748.38 × 53,494.60
  4. Step 4: Simplify right side
    85,271.08x = 6,298,902,488.75
  5. Step 5: Solve for x
    x = 6,298,902,488.75/85,271.08
  6. Step 6: Final answer
    x = 73,869.15

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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.