Home / 76,865.20-115,259.40-35,265.20

Finding the Fourth Proportional to 76,865.20, 115,259.40 and 35,265.20

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Solution

The fourth proportional to 76,865.20, 115,259.40 and 35,265.20 is: 52,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,865.20 : 115,259.40 = 35,265.20 : x
  2. Step 2: Convert to fraction form
    76,865.20/115,259.40 = 35,265.20/x
  3. Step 3: Cross multiply
    76,865.20x = 115,259.40 × 35,265.20
  4. Step 4: Simplify right side
    76,865.20x = 4,064,645,792.88
  5. Step 5: Solve for x
    x = 4,064,645,792.88/76,865.20
  6. Step 6: Final answer
    x = 52,880.18

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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.