Home / 85,345.37-117,776.54-47,619.62

Finding the Fourth Proportional to 85,345.37, 117,776.54 and 47,619.62

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Solution

The fourth proportional to 85,345.37, 117,776.54 and 47,619.62 is: 65,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,345.37 : 117,776.54 = 47,619.62 : x
  2. Step 2: Convert to fraction form
    85,345.37/117,776.54 = 47,619.62/x
  3. Step 3: Cross multiply
    85,345.37x = 117,776.54 × 47,619.62
  4. Step 4: Simplify right side
    85,345.37x = 5,608,474,255.11
  5. Step 5: Solve for x
    x = 5,608,474,255.11/85,345.37
  6. Step 6: Final answer
    x = 65,715.04

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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.