Home / 66,147.12-99,661.96-59,829.28

Finding the Fourth Proportional to 66,147.12, 99,661.96 and 59,829.28

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Solution

The fourth proportional to 66,147.12, 99,661.96 and 59,829.28 is: 90,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,147.12 : 99,661.96 = 59,829.28 : x
  2. Step 2: Convert to fraction form
    66,147.12/99,661.96 = 59,829.28/x
  3. Step 3: Cross multiply
    66,147.12x = 99,661.96 × 59,829.28
  4. Step 4: Simplify right side
    66,147.12x = 5,962,703,310.19
  5. Step 5: Solve for x
    x = 5,962,703,310.19/66,147.12
  6. Step 6: Final answer
    x = 90,143.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.