Home / 85,208.96-117,588.60-51,236.90

Finding the Fourth Proportional to 85,208.96, 117,588.60 and 51,236.90

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Solution

The fourth proportional to 85,208.96, 117,588.60 and 51,236.90 is: 70,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.96 : 117,588.60 = 51,236.90 : x
  2. Step 2: Convert to fraction form
    85,208.96/117,588.60 = 51,236.90/x
  3. Step 3: Cross multiply
    85,208.96x = 117,588.60 × 51,236.90
  4. Step 4: Simplify right side
    85,208.96x = 6,024,875,339.34
  5. Step 5: Solve for x
    x = 6,024,875,339.34/85,208.96
  6. Step 6: Final answer
    x = 70,707.06

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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.