Home / 87,240.63-120,389.03-53,305.92

Finding the Fourth Proportional to 87,240.63, 120,389.03 and 53,305.92

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Solution

The fourth proportional to 87,240.63, 120,389.03 and 53,305.92 is: 73,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,240.63 : 120,389.03 = 53,305.92 : x
  2. Step 2: Convert to fraction form
    87,240.63/120,389.03 = 53,305.92/x
  3. Step 3: Cross multiply
    87,240.63x = 120,389.03 × 53,305.92
  4. Step 4: Simplify right side
    87,240.63x = 6,417,448,002.06
  5. Step 5: Solve for x
    x = 6,417,448,002.06/87,240.63
  6. Step 6: Final answer
    x = 73,560.31

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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.