Home / 77,683.20-116,553.60-74,803.20

Finding the Fourth Proportional to 77,683.20, 116,553.60 and 74,803.20

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Solution

The fourth proportional to 77,683.20, 116,553.60 and 74,803.20 is: 112,232.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,683.20 : 116,553.60 = 74,803.20 : x
  2. Step 2: Convert to fraction form
    77,683.20/116,553.60 = 74,803.20/x
  3. Step 3: Cross multiply
    77,683.20x = 116,553.60 × 74,803.20
  4. Step 4: Simplify right side
    77,683.20x = 8,718,582,251.52
  5. Step 5: Solve for x
    x = 8,718,582,251.52/77,683.20
  6. Step 6: Final answer
    x = 112,232.53

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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.