Home / 85,742.44-118,385.22-55,542.76

Finding the Fourth Proportional to 85,742.44, 118,385.22 and 55,542.76

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Solution

The fourth proportional to 85,742.44, 118,385.22 and 55,542.76 is: 76,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,742.44 : 118,385.22 = 55,542.76 : x
  2. Step 2: Convert to fraction form
    85,742.44/118,385.22 = 55,542.76/x
  3. Step 3: Cross multiply
    85,742.44x = 118,385.22 × 55,542.76
  4. Step 4: Simplify right side
    85,742.44x = 6,575,441,862.01
  5. Step 5: Solve for x
    x = 6,575,441,862.01/85,742.44
  6. Step 6: Final answer
    x = 76,688.30

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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.