Home / 73,113.26-109,420.38-61,280.39

Finding the Fourth Proportional to 73,113.26, 109,420.38 and 61,280.39

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Solution

The fourth proportional to 73,113.26, 109,420.38 and 61,280.39 is: 91,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,113.26 : 109,420.38 = 61,280.39 : x
  2. Step 2: Convert to fraction form
    73,113.26/109,420.38 = 61,280.39/x
  3. Step 3: Cross multiply
    73,113.26x = 109,420.38 × 61,280.39
  4. Step 4: Simplify right side
    73,113.26x = 6,705,323,833.90
  5. Step 5: Solve for x
    x = 6,705,323,833.90/73,113.26
  6. Step 6: Final answer
    x = 91,711.47

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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.