Home / 52,781.77-78,776.24-45,634.39

Finding the Fourth Proportional to 52,781.77, 78,776.24 and 45,634.39

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Solution

The fourth proportional to 52,781.77, 78,776.24 and 45,634.39 is: 68,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.77 : 78,776.24 = 45,634.39 : x
  2. Step 2: Convert to fraction form
    52,781.77/78,776.24 = 45,634.39/x
  3. Step 3: Cross multiply
    52,781.77x = 78,776.24 × 45,634.39
  4. Step 4: Simplify right side
    52,781.77x = 3,594,905,658.89
  5. Step 5: Solve for x
    x = 3,594,905,658.89/52,781.77
  6. Step 6: Final answer
    x = 68,108.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.