Home / 87,821.34-121,193.23-47,534.77

Finding the Fourth Proportional to 87,821.34, 121,193.23 and 47,534.77

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Solution

The fourth proportional to 87,821.34, 121,193.23 and 47,534.77 is: 65,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,821.34 : 121,193.23 = 47,534.77 : x
  2. Step 2: Convert to fraction form
    87,821.34/121,193.23 = 47,534.77/x
  3. Step 3: Cross multiply
    87,821.34x = 121,193.23 × 47,534.77
  4. Step 4: Simplify right side
    87,821.34x = 5,760,892,313.61
  5. Step 5: Solve for x
    x = 5,760,892,313.61/87,821.34
  6. Step 6: Final answer
    x = 65,597.86

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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.