Home / 67,985.10-102,014.10-28,546.20

Finding the Fourth Proportional to 67,985.10, 102,014.10 and 28,546.20

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Solution

The fourth proportional to 67,985.10, 102,014.10 and 28,546.20 is: 42,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,985.10 : 102,014.10 = 28,546.20 : x
  2. Step 2: Convert to fraction form
    67,985.10/102,014.10 = 28,546.20/x
  3. Step 3: Cross multiply
    67,985.10x = 102,014.10 × 28,546.20
  4. Step 4: Simplify right side
    67,985.10x = 2,912,114,901.42
  5. Step 5: Solve for x
    x = 2,912,114,901.42/67,985.10
  6. Step 6: Final answer
    x = 42,834.60

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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.