Home / 65,945.28-98,950.40-30,878.88

Finding the Fourth Proportional to 65,945.28, 98,950.40 and 30,878.88

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Solution

The fourth proportional to 65,945.28, 98,950.40 and 30,878.88 is: 46,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945.28 : 98,950.40 = 30,878.88 : x
  2. Step 2: Convert to fraction form
    65,945.28/98,950.40 = 30,878.88/x
  3. Step 3: Cross multiply
    65,945.28x = 98,950.40 × 30,878.88
  4. Step 4: Simplify right side
    65,945.28x = 3,055,477,527.55
  5. Step 5: Solve for x
    x = 3,055,477,527.55/65,945.28
  6. Step 6: Final answer
    x = 46,333.53

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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.