Home / 64,478.28-96,702.30-31,181.88

Finding the Fourth Proportional to 64,478.28, 96,702.30 and 31,181.88

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Solution

The fourth proportional to 64,478.28, 96,702.30 and 31,181.88 is: 46,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.28 : 96,702.30 = 31,181.88 : x
  2. Step 2: Convert to fraction form
    64,478.28/96,702.30 = 31,181.88/x
  3. Step 3: Cross multiply
    64,478.28x = 96,702.30 × 31,181.88
  4. Step 4: Simplify right side
    64,478.28x = 3,015,359,514.32
  5. Step 5: Solve for x
    x = 3,015,359,514.32/64,478.28
  6. Step 6: Final answer
    x = 46,765.51

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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.