Home / 78,483.06-117,721.95-34,109.82

Finding the Fourth Proportional to 78,483.06, 117,721.95 and 34,109.82

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Solution

The fourth proportional to 78,483.06, 117,721.95 and 34,109.82 is: 51,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,483.06 : 117,721.95 = 34,109.82 : x
  2. Step 2: Convert to fraction form
    78,483.06/117,721.95 = 34,109.82/x
  3. Step 3: Cross multiply
    78,483.06x = 117,721.95 × 34,109.82
  4. Step 4: Simplify right side
    78,483.06x = 4,015,473,955.18
  5. Step 5: Solve for x
    x = 4,015,473,955.18/78,483.06
  6. Step 6: Final answer
    x = 51,163.58

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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.