Home / 66,285.42-99,378.46-39,984

Finding the Fourth Proportional to 66,285.42, 99,378.46 and 39,984

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Solution

The fourth proportional to 66,285.42, 99,378.46 and 39,984 is: 59,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.42 : 99,378.46 = 39,984 : x
  2. Step 2: Convert to fraction form
    66,285.42/99,378.46 = 39,984/x
  3. Step 3: Cross multiply
    66,285.42x = 99,378.46 × 39,984
  4. Step 4: Simplify right side
    66,285.42x = 3,973,548,344.64
  5. Step 5: Solve for x
    x = 3,973,548,344.64/66,285.42
  6. Step 6: Final answer
    x = 59,946.04

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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.