Home / 77,930.08-116,894.90-18,765.66

Finding the Fourth Proportional to 77,930.08, 116,894.90 and 18,765.66

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Solution

The fourth proportional to 77,930.08, 116,894.90 and 18,765.66 is: 28,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,930.08 : 116,894.90 = 18,765.66 : x
  2. Step 2: Convert to fraction form
    77,930.08/116,894.90 = 18,765.66/x
  3. Step 3: Cross multiply
    77,930.08x = 116,894.90 × 18,765.66
  4. Step 4: Simplify right side
    77,930.08x = 2,193,609,949.13
  5. Step 5: Solve for x
    x = 2,193,609,949.13/77,930.08
  6. Step 6: Final answer
    x = 28,148.44

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1.5x scale

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.