Home / 56,984.40-78,638.40-31,833.90

Finding the Fourth Proportional to 56,984.40, 78,638.40 and 31,833.90

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Solution

The fourth proportional to 56,984.40, 78,638.40 and 31,833.90 is: 43,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,984.40 : 78,638.40 = 31,833.90 : x
  2. Step 2: Convert to fraction form
    56,984.40/78,638.40 = 31,833.90/x
  3. Step 3: Cross multiply
    56,984.40x = 78,638.40 × 31,833.90
  4. Step 4: Simplify right side
    56,984.40x = 2,503,366,961.76
  5. Step 5: Solve for x
    x = 2,503,366,961.76/56,984.40
  6. Step 6: Final answer
    x = 43,930.74

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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.