Home / 85,276.78-117,682.88-47,038.01

Finding the Fourth Proportional to 85,276.78, 117,682.88 and 47,038.01

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Solution

The fourth proportional to 85,276.78, 117,682.88 and 47,038.01 is: 64,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276.78 : 117,682.88 = 47,038.01 : x
  2. Step 2: Convert to fraction form
    85,276.78/117,682.88 = 47,038.01/x
  3. Step 3: Cross multiply
    85,276.78x = 117,682.88 × 47,038.01
  4. Step 4: Simplify right side
    85,276.78x = 5,535,567,662.66
  5. Step 5: Solve for x
    x = 5,535,567,662.66/85,276.78
  6. Step 6: Final answer
    x = 64,912.96

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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.