Home / 87,072.64-120,159.68-47,328.64

Finding the Fourth Proportional to 87,072.64, 120,159.68 and 47,328.64

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Solution

The fourth proportional to 87,072.64, 120,159.68 and 47,328.64 is: 65,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,072.64 : 120,159.68 = 47,328.64 : x
  2. Step 2: Convert to fraction form
    87,072.64/120,159.68 = 47,328.64/x
  3. Step 3: Cross multiply
    87,072.64x = 120,159.68 × 47,328.64
  4. Step 4: Simplify right side
    87,072.64x = 5,686,994,237.24
  5. Step 5: Solve for x
    x = 5,686,994,237.24/87,072.64
  6. Step 6: Final answer
    x = 65,313.22

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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.