Home / 68,627.10-102,767.85-45,126.30

Finding the Fourth Proportional to 68,627.10, 102,767.85 and 45,126.30

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Solution

The fourth proportional to 68,627.10, 102,767.85 and 45,126.30 is: 67,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,627.10 : 102,767.85 = 45,126.30 : x
  2. Step 2: Convert to fraction form
    68,627.10/102,767.85 = 45,126.30/x
  3. Step 3: Cross multiply
    68,627.10x = 102,767.85 × 45,126.30
  4. Step 4: Simplify right side
    68,627.10x = 4,637,532,829.46
  5. Step 5: Solve for x
    x = 4,637,532,829.46/68,627.10
  6. Step 6: Final answer
    x = 67,575.82

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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.