Home / 87,434.94-120,655.95-49,708.38

Finding the Fourth Proportional to 87,434.94, 120,655.95 and 49,708.38

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Solution

The fourth proportional to 87,434.94, 120,655.95 and 49,708.38 is: 68,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,434.94 : 120,655.95 = 49,708.38 : x
  2. Step 2: Convert to fraction form
    87,434.94/120,655.95 = 49,708.38/x
  3. Step 3: Cross multiply
    87,434.94x = 120,655.95 × 49,708.38
  4. Step 4: Simplify right side
    87,434.94x = 5,997,611,811.86
  5. Step 5: Solve for x
    x = 5,997,611,811.86/87,434.94
  6. Step 6: Final answer
    x = 68,595.14

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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.