Home / 66,186.36-91,358.46-42,377.16

Finding the Fourth Proportional to 66,186.36, 91,358.46 and 42,377.16

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Solution

The fourth proportional to 66,186.36, 91,358.46 and 42,377.16 is: 58,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.36 : 91,358.46 = 42,377.16 : x
  2. Step 2: Convert to fraction form
    66,186.36/91,358.46 = 42,377.16/x
  3. Step 3: Cross multiply
    66,186.36x = 91,358.46 × 42,377.16
  4. Step 4: Simplify right side
    66,186.36x = 3,871,512,076.77
  5. Step 5: Solve for x
    x = 3,871,512,076.77/66,186.36
  6. Step 6: Final answer
    x = 58,494.11

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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.