Home / 85,612.96-118,153.68-47,899.36

Finding the Fourth Proportional to 85,612.96, 118,153.68 and 47,899.36

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Solution

The fourth proportional to 85,612.96, 118,153.68 and 47,899.36 is: 66,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,612.96 : 118,153.68 = 47,899.36 : x
  2. Step 2: Convert to fraction form
    85,612.96/118,153.68 = 47,899.36/x
  3. Step 3: Cross multiply
    85,612.96x = 118,153.68 × 47,899.36
  4. Step 4: Simplify right side
    85,612.96x = 5,659,485,653.64
  5. Step 5: Solve for x
    x = 5,659,485,653.64/85,612.96
  6. Step 6: Final answer
    x = 66,105.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.