Home / 76,839.78-106,001.29-51,352.46

Finding the Fourth Proportional to 76,839.78, 106,001.29 and 51,352.46

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Solution

The fourth proportional to 76,839.78, 106,001.29 and 51,352.46 is: 70,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,839.78 : 106,001.29 = 51,352.46 : x
  2. Step 2: Convert to fraction form
    76,839.78/106,001.29 = 51,352.46/x
  3. Step 3: Cross multiply
    76,839.78x = 106,001.29 × 51,352.46
  4. Step 4: Simplify right side
    76,839.78x = 5,443,427,004.67
  5. Step 5: Solve for x
    x = 5,443,427,004.67/76,839.78
  6. Step 6: Final answer
    x = 70,841.26

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1.5x scale

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.