Home / 66,319.25-99,479.00-54,607.86

Finding the Fourth Proportional to 66,319.25, 99,479.00 and 54,607.86

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Solution

The fourth proportional to 66,319.25, 99,479.00 and 54,607.86 is: 81,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,319.25 : 99,479.00 = 54,607.86 : x
  2. Step 2: Convert to fraction form
    66,319.25/99,479.00 = 54,607.86/x
  3. Step 3: Cross multiply
    66,319.25x = 99,479.00 × 54,607.86
  4. Step 4: Simplify right side
    66,319.25x = 5,432,335,441.46
  5. Step 5: Solve for x
    x = 5,432,335,441.46/66,319.25
  6. Step 6: Final answer
    x = 81,911.90

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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.