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Finding the Fourth Proportional to 85,880.96, 118,525.44 and 57,199.04

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Solution

The fourth proportional to 85,880.96, 118,525.44 and 57,199.04 is: 78,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,880.96 : 118,525.44 = 57,199.04 : x
  2. Step 2: Convert to fraction form
    85,880.96/118,525.44 = 57,199.04/x
  3. Step 3: Cross multiply
    85,880.96x = 118,525.44 × 57,199.04
  4. Step 4: Simplify right side
    85,880.96x = 6,779,541,383.58
  5. Step 5: Solve for x
    x = 6,779,541,383.58/85,880.96
  6. Step 6: Final answer
    x = 78,941.15

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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.