Home / 91,142.28-125,776.44-53,416.56

Finding the Fourth Proportional to 91,142.28, 125,776.44 and 53,416.56

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Solution

The fourth proportional to 91,142.28, 125,776.44 and 53,416.56 is: 73,714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,142.28 : 125,776.44 = 53,416.56 : x
  2. Step 2: Convert to fraction form
    91,142.28/125,776.44 = 53,416.56/x
  3. Step 3: Cross multiply
    91,142.28x = 125,776.44 × 53,416.56
  4. Step 4: Simplify right side
    91,142.28x = 6,718,544,753.85
  5. Step 5: Solve for x
    x = 6,718,544,753.85/91,142.28
  6. Step 6: Final answer
    x = 73,714.91

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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.