Home / 87,203.64-120,339.84-51,395.16

Finding the Fourth Proportional to 87,203.64, 120,339.84 and 51,395.16

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Solution

The fourth proportional to 87,203.64, 120,339.84 and 51,395.16 is: 70,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,203.64 : 120,339.84 = 51,395.16 : x
  2. Step 2: Convert to fraction form
    87,203.64/120,339.84 = 51,395.16/x
  3. Step 3: Cross multiply
    87,203.64x = 120,339.84 × 51,395.16
  4. Step 4: Simplify right side
    87,203.64x = 6,184,885,331.17
  5. Step 5: Solve for x
    x = 6,184,885,331.17/87,203.64
  6. Step 6: Final answer
    x = 70,924.62

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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.