Home / 87,771.12-121,123.98-47,484.90

Finding the Fourth Proportional to 87,771.12, 121,123.98 and 47,484.90

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Solution

The fourth proportional to 87,771.12, 121,123.98 and 47,484.90 is: 65,529.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,771.12 : 121,123.98 = 47,484.90 : x
  2. Step 2: Convert to fraction form
    87,771.12/121,123.98 = 47,484.90/x
  3. Step 3: Cross multiply
    87,771.12x = 121,123.98 × 47,484.90
  4. Step 4: Simplify right side
    87,771.12x = 5,751,560,077.90
  5. Step 5: Solve for x
    x = 5,751,560,077.90/87,771.12
  6. Step 6: Final answer
    x = 65,529.07

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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.