Home / 87,944.72-121,391.27-56,113.56

Finding the Fourth Proportional to 87,944.72, 121,391.27 and 56,113.56

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Solution

The fourth proportional to 87,944.72, 121,391.27 and 56,113.56 is: 77,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,944.72 : 121,391.27 = 56,113.56 : x
  2. Step 2: Convert to fraction form
    87,944.72/121,391.27 = 56,113.56/x
  3. Step 3: Cross multiply
    87,944.72x = 121,391.27 × 56,113.56
  4. Step 4: Simplify right side
    87,944.72x = 6,811,696,312.62
  5. Step 5: Solve for x
    x = 6,811,696,312.62/87,944.72
  6. Step 6: Final answer
    x = 77,454.30

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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.