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Finding the Fourth Proportional to 66,066.36, 99,114.66 and 28,632.66

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Solution

The fourth proportional to 66,066.36, 99,114.66 and 28,632.66 is: 42,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,066.36 : 99,114.66 = 28,632.66 : x
  2. Step 2: Convert to fraction form
    66,066.36/99,114.66 = 28,632.66/x
  3. Step 3: Cross multiply
    66,066.36x = 99,114.66 × 28,632.66
  4. Step 4: Simplify right side
    66,066.36x = 2,837,916,360.80
  5. Step 5: Solve for x
    x = 2,837,916,360.80/66,066.36
  6. Step 6: Final answer
    x = 42,955.54

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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.