Home / 78,371.87-117,562.23-25,068.53

Finding the Fourth Proportional to 78,371.87, 117,562.23 and 25,068.53

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Solution

The fourth proportional to 78,371.87, 117,562.23 and 25,068.53 is: 37,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,371.87 : 117,562.23 = 25,068.53 : x
  2. Step 2: Convert to fraction form
    78,371.87/117,562.23 = 25,068.53/x
  3. Step 3: Cross multiply
    78,371.87x = 117,562.23 × 25,068.53
  4. Step 4: Simplify right side
    78,371.87x = 2,947,111,701.81
  5. Step 5: Solve for x
    x = 2,947,111,701.81/78,371.87
  6. Step 6: Final answer
    x = 37,604.21

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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.