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Finding the Fourth Proportional to 73,265.40, 109,898.10 and 43,327.80

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Solution

The fourth proportional to 73,265.40, 109,898.10 and 43,327.80 is: 64,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,265.40 : 109,898.10 = 43,327.80 : x
  2. Step 2: Convert to fraction form
    73,265.40/109,898.10 = 43,327.80/x
  3. Step 3: Cross multiply
    73,265.40x = 109,898.10 × 43,327.80
  4. Step 4: Simplify right side
    73,265.40x = 4,761,642,897.18
  5. Step 5: Solve for x
    x = 4,761,642,897.18/73,265.40
  6. Step 6: Final answer
    x = 64,991.70

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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.