Home / 87,228.18-120,388.14-53,256.48

Finding the Fourth Proportional to 87,228.18, 120,388.14 and 53,256.48

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Solution

The fourth proportional to 87,228.18, 120,388.14 and 53,256.48 is: 73,502.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,228.18 : 120,388.14 = 53,256.48 : x
  2. Step 2: Convert to fraction form
    87,228.18/120,388.14 = 53,256.48/x
  3. Step 3: Cross multiply
    87,228.18x = 120,388.14 × 53,256.48
  4. Step 4: Simplify right side
    87,228.18x = 6,411,448,570.15
  5. Step 5: Solve for x
    x = 6,411,448,570.15/87,228.18
  6. Step 6: Final answer
    x = 73,502.03

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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.