Home / 85,355.06-117,796.68-47,122.20

Finding the Fourth Proportional to 85,355.06, 117,796.68 and 47,122.20

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Solution

The fourth proportional to 85,355.06, 117,796.68 and 47,122.20 is: 65,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,355.06 : 117,796.68 = 47,122.20 : x
  2. Step 2: Convert to fraction form
    85,355.06/117,796.68 = 47,122.20/x
  3. Step 3: Cross multiply
    85,355.06x = 117,796.68 × 47,122.20
  4. Step 4: Simplify right side
    85,355.06x = 5,550,838,714.30
  5. Step 5: Solve for x
    x = 5,550,838,714.30/85,355.06
  6. Step 6: Final answer
    x = 65,032.34

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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.