Home / 85,085.20-117,415.52-47,362.96

Finding the Fourth Proportional to 85,085.20, 117,415.52 and 47,362.96

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Solution

The fourth proportional to 85,085.20, 117,415.52 and 47,362.96 is: 65,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,085.20 : 117,415.52 = 47,362.96 : x
  2. Step 2: Convert to fraction form
    85,085.20/117,415.52 = 47,362.96/x
  3. Step 3: Cross multiply
    85,085.20x = 117,415.52 × 47,362.96
  4. Step 4: Simplify right side
    85,085.20x = 5,561,146,577.14
  5. Step 5: Solve for x
    x = 5,561,146,577.14/85,085.20
  6. Step 6: Final answer
    x = 65,359.74

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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.