Home / 76,830.02-115,170.18-34,720.70

Finding the Fourth Proportional to 76,830.02, 115,170.18 and 34,720.70

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Solution

The fourth proportional to 76,830.02, 115,170.18 and 34,720.70 is: 52,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,830.02 : 115,170.18 = 34,720.70 : x
  2. Step 2: Convert to fraction form
    76,830.02/115,170.18 = 34,720.70/x
  3. Step 3: Cross multiply
    76,830.02x = 115,170.18 × 34,720.70
  4. Step 4: Simplify right side
    76,830.02x = 3,998,788,692.88
  5. Step 5: Solve for x
    x = 3,998,788,692.88/76,830.02
  6. Step 6: Final answer
    x = 52,047.22

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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.