Home / 87,174.64-120,256.38-56,977.66

Finding the Fourth Proportional to 87,174.64, 120,256.38 and 56,977.66

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Solution

The fourth proportional to 87,174.64, 120,256.38 and 56,977.66 is: 78,600.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,174.64 : 120,256.38 = 56,977.66 : x
  2. Step 2: Convert to fraction form
    87,174.64/120,256.38 = 56,977.66/x
  3. Step 3: Cross multiply
    87,174.64x = 120,256.38 × 56,977.66
  4. Step 4: Simplify right side
    87,174.64x = 6,851,927,132.47
  5. Step 5: Solve for x
    x = 6,851,927,132.47/87,174.64
  6. Step 6: Final answer
    x = 78,600.00

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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.