Home / 65,645.06-98,499.72-40,678.43

Finding the Fourth Proportional to 65,645.06, 98,499.72 and 40,678.43

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Solution

The fourth proportional to 65,645.06, 98,499.72 and 40,678.43 is: 61,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.06 : 98,499.72 = 40,678.43 : x
  2. Step 2: Convert to fraction form
    65,645.06/98,499.72 = 40,678.43/x
  3. Step 3: Cross multiply
    65,645.06x = 98,499.72 × 40,678.43
  4. Step 4: Simplify right side
    65,645.06x = 4,006,813,965.04
  5. Step 5: Solve for x
    x = 4,006,813,965.04/65,645.06
  6. Step 6: Final answer
    x = 61,037.56

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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.