Home / 85,631.36-118,173.60-47,905.28

Finding the Fourth Proportional to 85,631.36, 118,173.60 and 47,905.28

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Solution

The fourth proportional to 85,631.36, 118,173.60 and 47,905.28 is: 66,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,631.36 : 118,173.60 = 47,905.28 : x
  2. Step 2: Convert to fraction form
    85,631.36/118,173.60 = 47,905.28/x
  3. Step 3: Cross multiply
    85,631.36x = 118,173.60 × 47,905.28
  4. Step 4: Simplify right side
    85,631.36x = 5,661,139,396.61
  5. Step 5: Solve for x
    x = 5,661,139,396.61/85,631.36
  6. Step 6: Final answer
    x = 66,110.59

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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.