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Finding the Fourth Proportional to 66,010.68, 99,009 and 18,624.60

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Solution

The fourth proportional to 66,010.68, 99,009 and 18,624.60 is: 27,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,010.68 : 99,009 = 18,624.60 : x
  2. Step 2: Convert to fraction form
    66,010.68/99,009 = 18,624.60/x
  3. Step 3: Cross multiply
    66,010.68x = 99,009 × 18,624.60
  4. Step 4: Simplify right side
    66,010.68x = 1,844,003,021.40
  5. Step 5: Solve for x
    x = 1,844,003,021.40/66,010.68
  6. Step 6: Final answer
    x = 27,934.92

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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.