Home / 85,211.10-127,816.65-49,635.90

Finding the Fourth Proportional to 85,211.10, 127,816.65 and 49,635.90

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Solution

The fourth proportional to 85,211.10, 127,816.65 and 49,635.90 is: 74,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,211.10 : 127,816.65 = 49,635.90 : x
  2. Step 2: Convert to fraction form
    85,211.10/127,816.65 = 49,635.90/x
  3. Step 3: Cross multiply
    85,211.10x = 127,816.65 × 49,635.90
  4. Step 4: Simplify right side
    85,211.10x = 6,344,294,457.74
  5. Step 5: Solve for x
    x = 6,344,294,457.74/85,211.10
  6. Step 6: Final answer
    x = 74,453.85

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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.