Home / 66,355.32-91,541.28-43,665.12

Finding the Fourth Proportional to 66,355.32, 91,541.28 and 43,665.12

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Solution

The fourth proportional to 66,355.32, 91,541.28 and 43,665.12 is: 60,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.32 : 91,541.28 = 43,665.12 : x
  2. Step 2: Convert to fraction form
    66,355.32/91,541.28 = 43,665.12/x
  3. Step 3: Cross multiply
    66,355.32x = 91,541.28 × 43,665.12
  4. Step 4: Simplify right side
    66,355.32x = 3,997,160,976.15
  5. Step 5: Solve for x
    x = 3,997,160,976.15/66,355.32
  6. Step 6: Final answer
    x = 60,238.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.