Home / 85,216.32-127,815.84-29,808

Finding the Fourth Proportional to 85,216.32, 127,815.84 and 29,808

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Solution

The fourth proportional to 85,216.32, 127,815.84 and 29,808 is: 44,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,216.32 : 127,815.84 = 29,808 : x
  2. Step 2: Convert to fraction form
    85,216.32/127,815.84 = 29,808/x
  3. Step 3: Cross multiply
    85,216.32x = 127,815.84 × 29,808
  4. Step 4: Simplify right side
    85,216.32x = 3,809,934,558.72
  5. Step 5: Solve for x
    x = 3,809,934,558.72/85,216.32
  6. Step 6: Final answer
    x = 44,708.98

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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.