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Finding the Fourth Proportional to 73,393.80, 110,090.70 and 72,702.60

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Solution

The fourth proportional to 73,393.80, 110,090.70 and 72,702.60 is: 109,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,393.80 : 110,090.70 = 72,702.60 : x
  2. Step 2: Convert to fraction form
    73,393.80/110,090.70 = 72,702.60/x
  3. Step 3: Cross multiply
    73,393.80x = 110,090.70 × 72,702.60
  4. Step 4: Simplify right side
    73,393.80x = 8,003,880,125.82
  5. Step 5: Solve for x
    x = 8,003,880,125.82/73,393.80
  6. Step 6: Final answer
    x = 109,053.90

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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.