Home / 76,735.02-115,094.28-20,580.72

Finding the Fourth Proportional to 76,735.02, 115,094.28 and 20,580.72

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Solution

The fourth proportional to 76,735.02, 115,094.28 and 20,580.72 is: 30,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,735.02 : 115,094.28 = 20,580.72 : x
  2. Step 2: Convert to fraction form
    76,735.02/115,094.28 = 20,580.72/x
  3. Step 3: Cross multiply
    76,735.02x = 115,094.28 × 20,580.72
  4. Step 4: Simplify right side
    76,735.02x = 2,368,723,150.28
  5. Step 5: Solve for x
    x = 2,368,723,150.28/76,735.02
  6. Step 6: Final answer
    x = 30,868.87

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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.