Home / 85,306.04-117,720.60-49,499.54

Finding the Fourth Proportional to 85,306.04, 117,720.60 and 49,499.54

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Solution

The fourth proportional to 85,306.04, 117,720.60 and 49,499.54 is: 68,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,306.04 : 117,720.60 = 49,499.54 : x
  2. Step 2: Convert to fraction form
    85,306.04/117,720.60 = 49,499.54/x
  3. Step 3: Cross multiply
    85,306.04x = 117,720.60 × 49,499.54
  4. Step 4: Simplify right side
    85,306.04x = 5,827,115,548.52
  5. Step 5: Solve for x
    x = 5,827,115,548.52/85,306.04
  6. Step 6: Final answer
    x = 68,308.36

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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.