Home / 85,840.36-118,459.96-47,602.60

Finding the Fourth Proportional to 85,840.36, 118,459.96 and 47,602.60

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Solution

The fourth proportional to 85,840.36, 118,459.96 and 47,602.60 is: 65,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840.36 : 118,459.96 = 47,602.60 : x
  2. Step 2: Convert to fraction form
    85,840.36/118,459.96 = 47,602.60/x
  3. Step 3: Cross multiply
    85,840.36x = 118,459.96 × 47,602.60
  4. Step 4: Simplify right side
    85,840.36x = 5,639,002,091.90
  5. Step 5: Solve for x
    x = 5,639,002,091.90/85,840.36
  6. Step 6: Final answer
    x = 65,691.73

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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.