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Finding the Fourth Proportional to 65,862.30, 98,793.45 and 30,323.55

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Solution

The fourth proportional to 65,862.30, 98,793.45 and 30,323.55 is: 45,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,862.30 : 98,793.45 = 30,323.55 : x
  2. Step 2: Convert to fraction form
    65,862.30/98,793.45 = 30,323.55/x
  3. Step 3: Cross multiply
    65,862.30x = 98,793.45 × 30,323.55
  4. Step 4: Simplify right side
    65,862.30x = 2,995,768,120.75
  5. Step 5: Solve for x
    x = 2,995,768,120.75/65,862.30
  6. Step 6: Final answer
    x = 45,485.33

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1.5x scale

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.