Home / 87,776.93-121,132.17-47,490.67

Finding the Fourth Proportional to 87,776.93, 121,132.17 and 47,490.67

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Solution

The fourth proportional to 87,776.93, 121,132.17 and 47,490.67 is: 65,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,776.93 : 121,132.17 = 47,490.67 : x
  2. Step 2: Convert to fraction form
    87,776.93/121,132.17 = 47,490.67/x
  3. Step 3: Cross multiply
    87,776.93x = 121,132.17 × 47,490.67
  4. Step 4: Simplify right side
    87,776.93x = 5,752,647,911.85
  5. Step 5: Solve for x
    x = 5,752,647,911.85/87,776.93
  6. Step 6: Final answer
    x = 65,537.13

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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.