Home / 85,270.08-117,747-53,493.60

Finding the Fourth Proportional to 85,270.08, 117,747 and 53,493.60

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Solution

The fourth proportional to 85,270.08, 117,747 and 53,493.60 is: 73,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,270.08 : 117,747 = 53,493.60 : x
  2. Step 2: Convert to fraction form
    85,270.08/117,747 = 53,493.60/x
  3. Step 3: Cross multiply
    85,270.08x = 117,747 × 53,493.60
  4. Step 4: Simplify right side
    85,270.08x = 6,298,710,919.20
  5. Step 5: Solve for x
    x = 6,298,710,919.20/85,270.08
  6. Step 6: Final answer
    x = 73,867.77

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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.