Home / 65,661.30-98,378.55-30,528.90

Finding the Fourth Proportional to 65,661.30, 98,378.55 and 30,528.90

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Solution

The fourth proportional to 65,661.30, 98,378.55 and 30,528.90 is: 45,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,661.30 : 98,378.55 = 30,528.90 : x
  2. Step 2: Convert to fraction form
    65,661.30/98,378.55 = 30,528.90/x
  3. Step 3: Cross multiply
    65,661.30x = 98,378.55 × 30,528.90
  4. Step 4: Simplify right side
    65,661.30x = 3,003,388,915.10
  5. Step 5: Solve for x
    x = 3,003,388,915.10/65,661.30
  6. Step 6: Final answer
    x = 45,740.63

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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.