Home / 85,181.88-117,548.46-47,455.32

Finding the Fourth Proportional to 85,181.88, 117,548.46 and 47,455.32

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Solution

The fourth proportional to 85,181.88, 117,548.46 and 47,455.32 is: 65,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,181.88 : 117,548.46 = 47,455.32 : x
  2. Step 2: Convert to fraction form
    85,181.88/117,548.46 = 47,455.32/x
  3. Step 3: Cross multiply
    85,181.88x = 117,548.46 × 47,455.32
  4. Step 4: Simplify right side
    85,181.88x = 5,578,299,784.81
  5. Step 5: Solve for x
    x = 5,578,299,784.81/85,181.88
  6. Step 6: Final answer
    x = 65,486.93

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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.