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Finding the Fourth Proportional to 65,846.20, 98,800.74 and 30,780.76

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Solution

The fourth proportional to 65,846.20, 98,800.74 and 30,780.76 is: 46,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,846.20 : 98,800.74 = 30,780.76 : x
  2. Step 2: Convert to fraction form
    65,846.20/98,800.74 = 30,780.76/x
  3. Step 3: Cross multiply
    65,846.20x = 98,800.74 × 30,780.76
  4. Step 4: Simplify right side
    65,846.20x = 3,041,161,865.76
  5. Step 5: Solve for x
    x = 3,041,161,865.76/65,846.20
  6. Step 6: Final answer
    x = 46,185.84

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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.