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Finding the Fourth Proportional to 72,915.80, 109,200.90 and 44,922.20

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Solution

The fourth proportional to 72,915.80, 109,200.90 and 44,922.20 is: 67,276.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,915.80 : 109,200.90 = 44,922.20 : x
  2. Step 2: Convert to fraction form
    72,915.80/109,200.90 = 44,922.20/x
  3. Step 3: Cross multiply
    72,915.80x = 109,200.90 × 44,922.20
  4. Step 4: Simplify right side
    72,915.80x = 4,905,544,669.98
  5. Step 5: Solve for x
    x = 4,905,544,669.98/72,915.80
  6. Step 6: Final answer
    x = 67,276.84

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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.