Home / 82,782.48-114,239.28-45,057.36

Finding the Fourth Proportional to 82,782.48, 114,239.28 and 45,057.36

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Solution

The fourth proportional to 82,782.48, 114,239.28 and 45,057.36 is: 62,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,782.48 : 114,239.28 = 45,057.36 : x
  2. Step 2: Convert to fraction form
    82,782.48/114,239.28 = 45,057.36/x
  3. Step 3: Cross multiply
    82,782.48x = 114,239.28 × 45,057.36
  4. Step 4: Simplify right side
    82,782.48x = 5,147,320,365.10
  5. Step 5: Solve for x
    x = 5,147,320,365.10/82,782.48
  6. Step 6: Final answer
    x = 62,178.86

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1.5x scale

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.