Home / 45,885.09-68,813.05-31,188.45

Finding the Fourth Proportional to 45,885.09, 68,813.05 and 31,188.45

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Solution

The fourth proportional to 45,885.09, 68,813.05 and 31,188.45 is: 46,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,885.09 : 68,813.05 = 31,188.45 : x
  2. Step 2: Convert to fraction form
    45,885.09/68,813.05 = 31,188.45/x
  3. Step 3: Cross multiply
    45,885.09x = 68,813.05 × 31,188.45
  4. Step 4: Simplify right side
    45,885.09x = 2,146,172,308.47
  5. Step 5: Solve for x
    x = 2,146,172,308.47/45,885.09
  6. Step 6: Final answer
    x = 46,772.76

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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.