Home / 71,729.45-98,927.70-63,669

Finding the Fourth Proportional to 71,729.45, 98,927.70 and 63,669

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Solution

The fourth proportional to 71,729.45, 98,927.70 and 63,669 is: 87,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,729.45 : 98,927.70 = 63,669 : x
  2. Step 2: Convert to fraction form
    71,729.45/98,927.70 = 63,669/x
  3. Step 3: Cross multiply
    71,729.45x = 98,927.70 × 63,669
  4. Step 4: Simplify right side
    71,729.45x = 6,298,627,731.30
  5. Step 5: Solve for x
    x = 6,298,627,731.30/71,729.45
  6. Step 6: Final answer
    x = 87,810.91

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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.