Home / 76,258.63-114,378.18-20,103.15

Finding the Fourth Proportional to 76,258.63, 114,378.18 and 20,103.15

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Solution

The fourth proportional to 76,258.63, 114,378.18 and 20,103.15 is: 30,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,258.63 : 114,378.18 = 20,103.15 : x
  2. Step 2: Convert to fraction form
    76,258.63/114,378.18 = 20,103.15/x
  3. Step 3: Cross multiply
    76,258.63x = 114,378.18 × 20,103.15
  4. Step 4: Simplify right side
    76,258.63x = 2,299,362,062.80
  5. Step 5: Solve for x
    x = 2,299,362,062.80/76,258.63
  6. Step 6: Final answer
    x = 30,152.15

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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.