Home / 85,276.08-117,755.28-53,499.60

Finding the Fourth Proportional to 85,276.08, 117,755.28 and 53,499.60

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Solution

The fourth proportional to 85,276.08, 117,755.28 and 53,499.60 is: 73,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276.08 : 117,755.28 = 53,499.60 : x
  2. Step 2: Convert to fraction form
    85,276.08/117,755.28 = 53,499.60/x
  3. Step 3: Cross multiply
    85,276.08x = 117,755.28 × 53,499.60
  4. Step 4: Simplify right side
    85,276.08x = 6,299,860,377.89
  5. Step 5: Solve for x
    x = 6,299,860,377.89/85,276.08
  6. Step 6: Final answer
    x = 73,876.06

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1.5x scale

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.