Home / 78,431.10-117,580.53-34,024.41

Finding the Fourth Proportional to 78,431.10, 117,580.53 and 34,024.41

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Solution

The fourth proportional to 78,431.10, 117,580.53 and 34,024.41 is: 51,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,431.10 : 117,580.53 = 34,024.41 : x
  2. Step 2: Convert to fraction form
    78,431.10/117,580.53 = 34,024.41/x
  3. Step 3: Cross multiply
    78,431.10x = 117,580.53 × 34,024.41
  4. Step 4: Simplify right side
    78,431.10x = 4,000,608,160.74
  5. Step 5: Solve for x
    x = 4,000,608,160.74/78,431.10
  6. Step 6: Final answer
    x = 51,007.93

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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.