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Finding the Fourth Proportional to 66,459.69, 99,699.51 and 21,466.02

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Solution

The fourth proportional to 66,459.69, 99,699.51 and 21,466.02 is: 32,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,459.69 : 99,699.51 = 21,466.02 : x
  2. Step 2: Convert to fraction form
    66,459.69/99,699.51 = 21,466.02/x
  3. Step 3: Cross multiply
    66,459.69x = 99,699.51 × 21,466.02
  4. Step 4: Simplify right side
    66,459.69x = 2,140,151,675.65
  5. Step 5: Solve for x
    x = 2,140,151,675.65/66,459.69
  6. Step 6: Final answer
    x = 32,202.25

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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.