Home / 91,677.20-137,493.96-51,713.36

Finding the Fourth Proportional to 91,677.20, 137,493.96 and 51,713.36

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Solution

The fourth proportional to 91,677.20, 137,493.96 and 51,713.36 is: 77,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,677.20 : 137,493.96 = 51,713.36 : x
  2. Step 2: Convert to fraction form
    91,677.20/137,493.96 = 51,713.36/x
  3. Step 3: Cross multiply
    91,677.20x = 137,493.96 × 51,713.36
  4. Step 4: Simplify right side
    91,677.20x = 7,110,274,651.31
  5. Step 5: Solve for x
    x = 7,110,274,651.31/91,677.20
  6. Step 6: Final answer
    x = 77,557.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.