Home / 87,595.61-120,881.90-47,309.36

Finding the Fourth Proportional to 87,595.61, 120,881.90 and 47,309.36

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Solution

The fourth proportional to 87,595.61, 120,881.90 and 47,309.36 is: 65,286.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,595.61 : 120,881.90 = 47,309.36 : x
  2. Step 2: Convert to fraction form
    87,595.61/120,881.90 = 47,309.36/x
  3. Step 3: Cross multiply
    87,595.61x = 120,881.90 × 47,309.36
  4. Step 4: Simplify right side
    87,595.61x = 5,718,844,838.45
  5. Step 5: Solve for x
    x = 5,718,844,838.45/87,595.61
  6. Step 6: Final answer
    x = 65,286.89

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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.