Home / 66,564.18-99,860.67-30,999.06

Finding the Fourth Proportional to 66,564.18, 99,860.67 and 30,999.06

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Solution

The fourth proportional to 66,564.18, 99,860.67 and 30,999.06 is: 46,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,564.18 : 99,860.67 = 30,999.06 : x
  2. Step 2: Convert to fraction form
    66,564.18/99,860.67 = 30,999.06/x
  3. Step 3: Cross multiply
    66,564.18x = 99,860.67 × 30,999.06
  4. Step 4: Simplify right side
    66,564.18x = 3,095,586,900.97
  5. Step 5: Solve for x
    x = 3,095,586,900.97/66,564.18
  6. Step 6: Final answer
    x = 46,505.30

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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.