Home / 66,007.20-99,010.80-58,231.20

Finding the Fourth Proportional to 66,007.20, 99,010.80 and 58,231.20

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Solution

The fourth proportional to 66,007.20, 99,010.80 and 58,231.20 is: 87,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007.20 : 99,010.80 = 58,231.20 : x
  2. Step 2: Convert to fraction form
    66,007.20/99,010.80 = 58,231.20/x
  3. Step 3: Cross multiply
    66,007.20x = 99,010.80 × 58,231.20
  4. Step 4: Simplify right side
    66,007.20x = 5,765,517,696.96
  5. Step 5: Solve for x
    x = 5,765,517,696.96/66,007.20
  6. Step 6: Final answer
    x = 87,346.80

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1.5x scale

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.