Home / 85,334.16-127,816.54-55,661.96

Finding the Fourth Proportional to 85,334.16, 127,816.54 and 55,661.96

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Solution

The fourth proportional to 85,334.16, 127,816.54 and 55,661.96 is: 83,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,334.16 : 127,816.54 = 55,661.96 : x
  2. Step 2: Convert to fraction form
    85,334.16/127,816.54 = 55,661.96/x
  3. Step 3: Cross multiply
    85,334.16x = 127,816.54 × 55,661.96
  4. Step 4: Simplify right side
    85,334.16x = 7,114,519,136.82
  5. Step 5: Solve for x
    x = 7,114,519,136.82/85,334.16
  6. Step 6: Final answer
    x = 83,372.46

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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.