Home / 84,970.76-117,274.32-49,180.50

Finding the Fourth Proportional to 84,970.76, 117,274.32 and 49,180.50

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Solution

The fourth proportional to 84,970.76, 117,274.32 and 49,180.50 is: 67,877.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,970.76 : 117,274.32 = 49,180.50 : x
  2. Step 2: Convert to fraction form
    84,970.76/117,274.32 = 49,180.50/x
  3. Step 3: Cross multiply
    84,970.76x = 117,274.32 × 49,180.50
  4. Step 4: Simplify right side
    84,970.76x = 5,767,609,694.76
  5. Step 5: Solve for x
    x = 5,767,609,694.76/84,970.76
  6. Step 6: Final answer
    x = 67,877.59

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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.