Home / 85,312.20-127,805.10-45,856.20

Finding the Fourth Proportional to 85,312.20, 127,805.10 and 45,856.20

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Solution

The fourth proportional to 85,312.20, 127,805.10 and 45,856.20 is: 68,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,312.20 : 127,805.10 = 45,856.20 : x
  2. Step 2: Convert to fraction form
    85,312.20/127,805.10 = 45,856.20/x
  3. Step 3: Cross multiply
    85,312.20x = 127,805.10 × 45,856.20
  4. Step 4: Simplify right side
    85,312.20x = 5,860,656,226.62
  5. Step 5: Solve for x
    x = 5,860,656,226.62/85,312.20
  6. Step 6: Final answer
    x = 68,696.58

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1.5x scale

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.