Home / 61,928.08-85,496.16-40,768.86

Finding the Fourth Proportional to 61,928.08, 85,496.16 and 40,768.86

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Solution

The fourth proportional to 61,928.08, 85,496.16 and 40,768.86 is: 56,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,928.08 : 85,496.16 = 40,768.86 : x
  2. Step 2: Convert to fraction form
    61,928.08/85,496.16 = 40,768.86/x
  3. Step 3: Cross multiply
    61,928.08x = 85,496.16 × 40,768.86
  4. Step 4: Simplify right side
    61,928.08x = 3,485,580,977.58
  5. Step 5: Solve for x
    x = 3,485,580,977.58/61,928.08
  6. Step 6: Final answer
    x = 56,284.34

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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.