Home / 65,746.20-98,619.30-45,625.80

Finding the Fourth Proportional to 65,746.20, 98,619.30 and 45,625.80

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Solution

The fourth proportional to 65,746.20, 98,619.30 and 45,625.80 is: 68,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,746.20 : 98,619.30 = 45,625.80 : x
  2. Step 2: Convert to fraction form
    65,746.20/98,619.30 = 45,625.80/x
  3. Step 3: Cross multiply
    65,746.20x = 98,619.30 × 45,625.80
  4. Step 4: Simplify right side
    65,746.20x = 4,499,584,457.94
  5. Step 5: Solve for x
    x = 4,499,584,457.94/65,746.20
  6. Step 6: Final answer
    x = 68,438.70

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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.