Home / 65,770.18-98,669.88-30,690.70

Finding the Fourth Proportional to 65,770.18, 98,669.88 and 30,690.70

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Solution

The fourth proportional to 65,770.18, 98,669.88 and 30,690.70 is: 46,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,770.18 : 98,669.88 = 30,690.70 : x
  2. Step 2: Convert to fraction form
    65,770.18/98,669.88 = 30,690.70/x
  3. Step 3: Cross multiply
    65,770.18x = 98,669.88 × 30,690.70
  4. Step 4: Simplify right side
    65,770.18x = 3,028,247,686.12
  5. Step 5: Solve for x
    x = 3,028,247,686.12/65,770.18
  6. Step 6: Final answer
    x = 46,042.87

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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.