Home / 87,764.48-121,126.72-51,951.68

Finding the Fourth Proportional to 87,764.48, 121,126.72 and 51,951.68

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Solution

The fourth proportional to 87,764.48, 121,126.72 and 51,951.68 is: 71,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,764.48 : 121,126.72 = 51,951.68 : x
  2. Step 2: Convert to fraction form
    87,764.48/121,126.72 = 51,951.68/x
  3. Step 3: Cross multiply
    87,764.48x = 121,126.72 × 51,951.68
  4. Step 4: Simplify right side
    87,764.48x = 6,292,736,596.89
  5. Step 5: Solve for x
    x = 6,292,736,596.89/87,764.48
  6. Step 6: Final answer
    x = 71,700.27

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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.