Home / 87,992.24-121,529.50-59,648.72

Finding the Fourth Proportional to 87,992.24, 121,529.50 and 59,648.72

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Solution

The fourth proportional to 87,992.24, 121,529.50 and 59,648.72 is: 82,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,992.24 : 121,529.50 = 59,648.72 : x
  2. Step 2: Convert to fraction form
    87,992.24/121,529.50 = 59,648.72/x
  3. Step 3: Cross multiply
    87,992.24x = 121,529.50 × 59,648.72
  4. Step 4: Simplify right side
    87,992.24x = 7,249,078,360.47
  5. Step 5: Solve for x
    x = 7,249,078,360.47/87,992.24
  6. Step 6: Final answer
    x = 82,383.16

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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.