Home / 85,360.11-117,774.08-55,134.41

Finding the Fourth Proportional to 85,360.11, 117,774.08 and 55,134.41

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Solution

The fourth proportional to 85,360.11, 117,774.08 and 55,134.41 is: 76,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360.11 : 117,774.08 = 55,134.41 : x
  2. Step 2: Convert to fraction form
    85,360.11/117,774.08 = 55,134.41/x
  3. Step 3: Cross multiply
    85,360.11x = 117,774.08 × 55,134.41
  4. Step 4: Simplify right side
    85,360.11x = 6,493,403,549.55
  5. Step 5: Solve for x
    x = 6,493,403,549.55/85,360.11
  6. Step 6: Final answer
    x = 76,070.70

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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.