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Finding the Fourth Proportional to 32,480.60, 48,720.90 and 30,512.30

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Solution

The fourth proportional to 32,480.60, 48,720.90 and 30,512.30 is: 45,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,480.60 : 48,720.90 = 30,512.30 : x
  2. Step 2: Convert to fraction form
    32,480.60/48,720.90 = 30,512.30/x
  3. Step 3: Cross multiply
    32,480.60x = 48,720.90 × 30,512.30
  4. Step 4: Simplify right side
    32,480.60x = 1,486,586,717.07
  5. Step 5: Solve for x
    x = 1,486,586,717.07/32,480.60
  6. Step 6: Final answer
    x = 45,768.45

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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.