Home / 85,335.50-117,768.66-47,610.56

Finding the Fourth Proportional to 85,335.50, 117,768.66 and 47,610.56

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Solution

The fourth proportional to 85,335.50, 117,768.66 and 47,610.56 is: 65,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,335.50 : 117,768.66 = 47,610.56 : x
  2. Step 2: Convert to fraction form
    85,335.50/117,768.66 = 47,610.56/x
  3. Step 3: Cross multiply
    85,335.50x = 117,768.66 × 47,610.56
  4. Step 4: Simplify right side
    85,335.50x = 5,607,031,853.05
  5. Step 5: Solve for x
    x = 5,607,031,853.05/85,335.50
  6. Step 6: Final answer
    x = 65,705.74

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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.