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Finding the Fourth Proportional to 65,281.50, 90,092.12 and 36,996.30

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Solution

The fourth proportional to 65,281.50, 90,092.12 and 36,996.30 is: 51,056.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,281.50 : 90,092.12 = 36,996.30 : x
  2. Step 2: Convert to fraction form
    65,281.50/90,092.12 = 36,996.30/x
  3. Step 3: Cross multiply
    65,281.50x = 90,092.12 × 36,996.30
  4. Step 4: Simplify right side
    65,281.50x = 3,333,074,914.17
  5. Step 5: Solve for x
    x = 3,333,074,914.17/65,281.50
  6. Step 6: Final answer
    x = 51,056.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.