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Finding the Fourth Proportional to 65,630.60, 98,445.90 and 30,573.80

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Solution

The fourth proportional to 65,630.60, 98,445.90 and 30,573.80 is: 45,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,630.60 : 98,445.90 = 30,573.80 : x
  2. Step 2: Convert to fraction form
    65,630.60/98,445.90 = 30,573.80/x
  3. Step 3: Cross multiply
    65,630.60x = 98,445.90 × 30,573.80
  4. Step 4: Simplify right side
    65,630.60x = 3,009,865,257.42
  5. Step 5: Solve for x
    x = 3,009,865,257.42/65,630.60
  6. Step 6: Final answer
    x = 45,860.70

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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.