Home / 65,705.20-98,606.40-43,511.20

Finding the Fourth Proportional to 65,705.20, 98,606.40 and 43,511.20

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Solution

The fourth proportional to 65,705.20, 98,606.40 and 43,511.20 is: 65,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,705.20 : 98,606.40 = 43,511.20 : x
  2. Step 2: Convert to fraction form
    65,705.20/98,606.40 = 43,511.20/x
  3. Step 3: Cross multiply
    65,705.20x = 98,606.40 × 43,511.20
  4. Step 4: Simplify right side
    65,705.20x = 4,290,482,791.68
  5. Step 5: Solve for x
    x = 4,290,482,791.68/65,705.20
  6. Step 6: Final answer
    x = 65,298.98

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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.