Home / 87,688.85-121,011.77-51,877.94

Finding the Fourth Proportional to 87,688.85, 121,011.77 and 51,877.94

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Solution

The fourth proportional to 87,688.85, 121,011.77 and 51,877.94 is: 71,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688.85 : 121,011.77 = 51,877.94 : x
  2. Step 2: Convert to fraction form
    87,688.85/121,011.77 = 51,877.94/x
  3. Step 3: Cross multiply
    87,688.85x = 121,011.77 × 51,877.94
  4. Step 4: Simplify right side
    87,688.85x = 6,277,840,867.99
  5. Step 5: Solve for x
    x = 6,277,840,867.99/87,688.85
  6. Step 6: Final answer
    x = 71,592.24

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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.