Home / 53,915.76-80,775.09-39,087.90

Finding the Fourth Proportional to 53,915.76, 80,775.09 and 39,087.90

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Solution

The fourth proportional to 53,915.76, 80,775.09 and 39,087.90 is: 58,560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.76 : 80,775.09 = 39,087.90 : x
  2. Step 2: Convert to fraction form
    53,915.76/80,775.09 = 39,087.90/x
  3. Step 3: Cross multiply
    53,915.76x = 80,775.09 × 39,087.90
  4. Step 4: Simplify right side
    53,915.76x = 3,157,328,640.41
  5. Step 5: Solve for x
    x = 3,157,328,640.41/53,915.76
  6. Step 6: Final answer
    x = 58,560.40

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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.