Home / 87,682.42-120,973.19-53,655.40

Finding the Fourth Proportional to 87,682.42, 120,973.19 and 53,655.40

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Solution

The fourth proportional to 87,682.42, 120,973.19 and 53,655.40 is: 74,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,682.42 : 120,973.19 = 53,655.40 : x
  2. Step 2: Convert to fraction form
    87,682.42/120,973.19 = 53,655.40/x
  3. Step 3: Cross multiply
    87,682.42x = 120,973.19 × 53,655.40
  4. Step 4: Simplify right side
    87,682.42x = 6,490,864,898.73
  5. Step 5: Solve for x
    x = 6,490,864,898.73/87,682.42
  6. Step 6: Final answer
    x = 74,026.98

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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.