Home / 66,412.20-99,618.30-59,845.80

Finding the Fourth Proportional to 66,412.20, 99,618.30 and 59,845.80

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Solution

The fourth proportional to 66,412.20, 99,618.30 and 59,845.80 is: 89,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,412.20 : 99,618.30 = 59,845.80 : x
  2. Step 2: Convert to fraction form
    66,412.20/99,618.30 = 59,845.80/x
  3. Step 3: Cross multiply
    66,412.20x = 99,618.30 × 59,845.80
  4. Step 4: Simplify right side
    66,412.20x = 5,961,736,858.14
  5. Step 5: Solve for x
    x = 5,961,736,858.14/66,412.20
  6. Step 6: Final answer
    x = 89,768.70

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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.