Home / 66,285.79-99,425.91-45,173.08

Finding the Fourth Proportional to 66,285.79, 99,425.91 and 45,173.08

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Solution

The fourth proportional to 66,285.79, 99,425.91 and 45,173.08 is: 67,757.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.79 : 99,425.91 = 45,173.08 : x
  2. Step 2: Convert to fraction form
    66,285.79/99,425.91 = 45,173.08/x
  3. Step 3: Cross multiply
    66,285.79x = 99,425.91 × 45,173.08
  4. Step 4: Simplify right side
    66,285.79x = 4,491,374,586.50
  5. Step 5: Solve for x
    x = 4,491,374,586.50/66,285.79
  6. Step 6: Final answer
    x = 67,757.73

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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.